21741210

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1$

素因数の和:434

約数の個数: 96

約数和(自身を含む): 61326720

約数和(自身を除く): 39585510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 81, 90, 115, 135, 138, 162, 207, 230, 243, 270, 345, 389, 405, 414, 486, 621, 690, 778, 810, 1035, 1167, 1215, 1242, 1863, 1945, 2070, 2334, 2430, 3105, 3501, 3726, 3890, 5589, 5835, 6210, 7002, 8947, 9315, 10503, 11178, 11670, 17505, 17894, 18630, 21006, 26841, 27945, 31509, 35010, 44735, 52515, 53682, 55890, 63018, 80523, 89470, 94527, 105030, 134205, 157545, 161046, 189054, 241569, 268410, 315090, 402615, 472635, 483138, 724707, 805230, 945270, 1207845, 1449414, 2174121, 2415690, 3623535, 4348242, 7247070, 10870605, 21741210]

約数ペア:

[(1, 21741210), (2, 10870605), (3, 7247070), (5, 4348242), (6, 3623535), (9, 2415690), (10, 2174121), (15, 1449414), (18, 1207845), (23, 945270), (27, 805230), (30, 724707), (45, 483138), (46, 472635), (54, 402615), (69, 315090), (81, 268410), (90, 241569), (115, 189054), (135, 161046), (138, 157545), (162, 134205), (207, 105030), (230, 94527), (243, 89470), (270, 80523), (345, 63018), (389, 55890), (405, 53682), (414, 52515), (486, 44735), (621, 35010), (690, 31509), (778, 27945), (810, 26841), (1035, 21006), (1167, 18630), (1215, 17894), (1242, 17505), (1863, 11670), (1945, 11178), (2070, 10503), (2334, 9315), (2430, 8947), (3105, 7002), (3501, 6210), (3726, 5835), (3890, 5589)]