20701944

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:477

約数の個数: 96

約数和(自身を含む): 60762000

約数和(自身を除く): 40060056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 37, 38, 57, 72, 74, 76, 111, 114, 148, 152, 171, 222, 228, 296, 333, 342, 409, 444, 456, 666, 684, 703, 818, 888, 1227, 1332, 1368, 1406, 1636, 2109, 2454, 2664, 2812, 3272, 3681, 4218, 4908, 5624, 6327, 7362, 7771, 8436, 9816, 12654, 14724, 15133, 15542, 16872, 23313, 25308, 29448, 30266, 31084, 45399, 46626, 50616, 60532, 62168, 69939, 90798, 93252, 121064, 136197, 139878, 181596, 186504, 272394, 279756, 287527, 363192, 544788, 559512, 575054, 862581, 1089576, 1150108, 1725162, 2300216, 2587743, 3450324, 5175486, 6900648, 10350972, 20701944]

約数ペア:

[(1, 20701944), (2, 10350972), (3, 6900648), (4, 5175486), (6, 3450324), (8, 2587743), (9, 2300216), (12, 1725162), (18, 1150108), (19, 1089576), (24, 862581), (36, 575054), (37, 559512), (38, 544788), (57, 363192), (72, 287527), (74, 279756), (76, 272394), (111, 186504), (114, 181596), (148, 139878), (152, 136197), (171, 121064), (222, 93252), (228, 90798), (296, 69939), (333, 62168), (342, 60532), (409, 50616), (444, 46626), (456, 45399), (666, 31084), (684, 30266), (703, 29448), (818, 25308), (888, 23313), (1227, 16872), (1332, 15542), (1368, 15133), (1406, 14724), (1636, 12654), (2109, 9816), (2454, 8436), (2664, 7771), (2812, 7362), (3272, 6327), (3681, 5624), (4218, 4908)]