21044760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 69984000

約数和(自身を除く): 48939240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 107, 110, 120, 132, 149, 165, 214, 220, 264, 298, 321, 330, 428, 440, 447, 535, 596, 642, 660, 745, 856, 894, 1070, 1177, 1192, 1284, 1320, 1490, 1605, 1639, 1788, 2140, 2235, 2354, 2568, 2980, 3210, 3278, 3531, 3576, 4280, 4470, 4708, 4917, 5885, 5960, 6420, 6556, 7062, 8195, 8940, 9416, 9834, 11770, 12840, 13112, 14124, 15943, 16390, 17655, 17880, 19668, 23540, 24585, 28248, 31886, 32780, 35310, 39336, 47080, 47829, 49170, 63772, 65560, 70620, 79715, 95658, 98340, 127544, 141240, 159430, 175373, 191316, 196680, 239145, 318860, 350746, 382632, 478290, 526119, 637720, 701492, 876865, 956580, 1052238, 1402984, 1753730, 1913160, 2104476, 2630595, 3507460, 4208952, 5261190, 7014920, 10522380, 21044760]

約数ペア:

[(1, 21044760), (2, 10522380), (3, 7014920), (4, 5261190), (5, 4208952), (6, 3507460), (8, 2630595), (10, 2104476), (11, 1913160), (12, 1753730), (15, 1402984), (20, 1052238), (22, 956580), (24, 876865), (30, 701492), (33, 637720), (40, 526119), (44, 478290), (55, 382632), (60, 350746), (66, 318860), (88, 239145), (107, 196680), (110, 191316), (120, 175373), (132, 159430), (149, 141240), (165, 127544), (214, 98340), (220, 95658), (264, 79715), (298, 70620), (321, 65560), (330, 63772), (428, 49170), (440, 47829), (447, 47080), (535, 39336), (596, 35310), (642, 32780), (660, 31886), (745, 28248), (856, 24585), (894, 23540), (1070, 19668), (1177, 17880), (1192, 17655), (1284, 16390), (1320, 15943), (1490, 14124), (1605, 13112), (1639, 12840), (1788, 11770), (2140, 9834), (2235, 9416), (2354, 8940), (2568, 8195), (2980, 7062), (3210, 6556), (3278, 6420), (3531, 5960), (3576, 5885), (4280, 4917), (4470, 4708)]