21190416

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1171}}^1$

素因数の和:1224

約数の個数: 80

約数和(自身を含む): 61037760

約数和(自身を除く): 39847344

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 29, 39, 48, 52, 58, 78, 87, 104, 116, 156, 174, 208, 232, 312, 348, 377, 464, 624, 696, 754, 1131, 1171, 1392, 1508, 2262, 2342, 3016, 3513, 4524, 4684, 6032, 7026, 9048, 9368, 14052, 15223, 18096, 18736, 28104, 30446, 33959, 45669, 56208, 60892, 67918, 91338, 101877, 121784, 135836, 182676, 203754, 243568, 271672, 365352, 407508, 441467, 543344, 730704, 815016, 882934, 1324401, 1630032, 1765868, 2648802, 3531736, 5297604, 7063472, 10595208, 21190416]

約数ペア:

[(1, 21190416), (2, 10595208), (3, 7063472), (4, 5297604), (6, 3531736), (8, 2648802), (12, 1765868), (13, 1630032), (16, 1324401), (24, 882934), (26, 815016), (29, 730704), (39, 543344), (48, 441467), (52, 407508), (58, 365352), (78, 271672), (87, 243568), (104, 203754), (116, 182676), (156, 135836), (174, 121784), (208, 101877), (232, 91338), (312, 67918), (348, 60892), (377, 56208), (464, 45669), (624, 33959), (696, 30446), (754, 28104), (1131, 18736), (1171, 18096), (1392, 15223), (1508, 14052), (2262, 9368), (2342, 9048), (3016, 7026), (3513, 6032), (4524, 4684)]