21195291260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{83269}}^1$

素因数の和:83391

約数の個数: 96

約数和(自身を含む): 52879780800

約数和(自身を除く): 31684489540

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 89, 110, 130, 143, 178, 220, 260, 286, 356, 445, 572, 715, 890, 979, 1157, 1430, 1780, 1958, 2314, 2860, 3916, 4628, 4895, 5785, 9790, 11570, 12727, 19580, 23140, 25454, 50908, 63635, 83269, 127270, 166538, 254540, 333076, 416345, 832690, 915959, 1082497, 1665380, 1831918, 2164994, 3663836, 4329988, 4579795, 5412485, 7410941, 9159590, 10824970, 11907467, 14821882, 18319180, 21649940, 23814934, 29643764, 37054705, 47629868, 59537335, 74109410, 81520351, 96342233, 119074670, 148218820, 163040702, 192684466, 238149340, 326081404, 385368932, 407601755, 481711165, 815203510, 963422330, 1059764563, 1630407020, 1926844660, 2119529126, 4239058252, 5298822815, 10597645630, 21195291260]

約数ペア:

[(1, 21195291260), (2, 10597645630), (4, 5298822815), (5, 4239058252), (10, 2119529126), (11, 1926844660), (13, 1630407020), (20, 1059764563), (22, 963422330), (26, 815203510), (44, 481711165), (52, 407601755), (55, 385368932), (65, 326081404), (89, 238149340), (110, 192684466), (130, 163040702), (143, 148218820), (178, 119074670), (220, 96342233), (260, 81520351), (286, 74109410), (356, 59537335), (445, 47629868), (572, 37054705), (715, 29643764), (890, 23814934), (979, 21649940), (1157, 18319180), (1430, 14821882), (1780, 11907467), (1958, 10824970), (2314, 9159590), (2860, 7410941), (3916, 5412485), (4628, 4579795), (4895, 4329988), (5785, 3663836), (9790, 2164994), (11570, 1831918), (12727, 1665380), (19580, 1082497), (23140, 915959), (25454, 832690), (50908, 416345), (63635, 333076), (83269, 254540), (127270, 166538)]