20921149416

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{11317}}^1$

素因数の和:11563

約数の個数: 128

約数和(自身を含む): 58085786880

約数和(自身を除く): 37164637464

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 23, 24, 34, 46, 51, 68, 69, 92, 102, 136, 138, 184, 197, 204, 276, 391, 394, 408, 552, 591, 782, 788, 1173, 1182, 1564, 1576, 2346, 2364, 3128, 3349, 4531, 4692, 4728, 6698, 9062, 9384, 10047, 11317, 13396, 13593, 18124, 20094, 22634, 26792, 27186, 33951, 36248, 40188, 45268, 54372, 67902, 77027, 80376, 90536, 108744, 135804, 154054, 192389, 231081, 260291, 271608, 308108, 384778, 462162, 520582, 577167, 616216, 769556, 780873, 924324, 1041164, 1154334, 1539112, 1561746, 1848648, 2082328, 2229449, 2308668, 3123492, 4424947, 4458898, 4617336, 6246984, 6688347, 8849894, 8917796, 13274841, 13376694, 17699788, 17835592, 26549682, 26753388, 35399576, 37900633, 51277327, 53099364, 53506776, 75801266, 102554654, 106198728, 113701899, 151602532, 153831981, 205109308, 227403798, 303205064, 307663962, 410218616, 454807596, 615327924, 871714559, 909615192, 1230655848, 1743429118, 2615143677, 3486858236, 5230287354, 6973716472, 10460574708, 20921149416]

約数ペア:

[(1, 20921149416), (2, 10460574708), (3, 6973716472), (4, 5230287354), (6, 3486858236), (8, 2615143677), (12, 1743429118), (17, 1230655848), (23, 909615192), (24, 871714559), (34, 615327924), (46, 454807596), (51, 410218616), (68, 307663962), (69, 303205064), (92, 227403798), (102, 205109308), (136, 153831981), (138, 151602532), (184, 113701899), (197, 106198728), (204, 102554654), (276, 75801266), (391, 53506776), (394, 53099364), (408, 51277327), (552, 37900633), (591, 35399576), (782, 26753388), (788, 26549682), (1173, 17835592), (1182, 17699788), (1564, 13376694), (1576, 13274841), (2346, 8917796), (2364, 8849894), (3128, 6688347), (3349, 6246984), (4531, 4617336), (4692, 4458898), (4728, 4424947), (6698, 3123492), (9062, 2308668), (9384, 2229449), (10047, 2082328), (11317, 1848648), (13396, 1561746), (13593, 1539112), (18124, 1154334), (20094, 1041164), (22634, 924324), (26792, 780873), (27186, 769556), (33951, 616216), (36248, 577167), (40188, 520582), (45268, 462162), (54372, 384778), (67902, 308108), (77027, 271608), (80376, 260291), (90536, 231081), (108744, 192389), (135804, 154054)]