20717592

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:325

約数の個数: 96

約数和(自身を含む): 61286400

約数和(自身を除く): 40568808

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 79, 84, 98, 147, 158, 168, 196, 223, 237, 294, 316, 392, 446, 474, 553, 588, 632, 669, 892, 948, 1106, 1176, 1338, 1561, 1659, 1784, 1896, 2212, 2676, 3122, 3318, 3871, 4424, 4683, 5352, 6244, 6636, 7742, 9366, 10927, 11613, 12488, 13272, 15484, 17617, 18732, 21854, 23226, 30968, 32781, 35234, 37464, 43708, 46452, 52851, 65562, 70468, 87416, 92904, 105702, 123319, 131124, 140936, 211404, 246638, 262248, 369957, 422808, 493276, 739914, 863233, 986552, 1479828, 1726466, 2589699, 2959656, 3452932, 5179398, 6905864, 10358796, 20717592]

約数ペア:

[(1, 20717592), (2, 10358796), (3, 6905864), (4, 5179398), (6, 3452932), (7, 2959656), (8, 2589699), (12, 1726466), (14, 1479828), (21, 986552), (24, 863233), (28, 739914), (42, 493276), (49, 422808), (56, 369957), (79, 262248), (84, 246638), (98, 211404), (147, 140936), (158, 131124), (168, 123319), (196, 105702), (223, 92904), (237, 87416), (294, 70468), (316, 65562), (392, 52851), (446, 46452), (474, 43708), (553, 37464), (588, 35234), (632, 32781), (669, 30968), (892, 23226), (948, 21854), (1106, 18732), (1176, 17617), (1338, 15484), (1561, 13272), (1659, 12488), (1784, 11613), (1896, 10927), (2212, 9366), (2676, 7742), (3122, 6636), (3318, 6244), (3871, 5352), (4424, 4683)]