21390168

素因数分解:

$2^3\times 3^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 56210400

約数和(自身を除く): 34820232

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 29, 58, 73, 87, 116, 146, 174, 219, 232, 292, 348, 421, 438, 584, 696, 842, 876, 1263, 1684, 1752, 2117, 2526, 3368, 4234, 5052, 6351, 8468, 10104, 12209, 12702, 16936, 24418, 25404, 30733, 36627, 48836, 50808, 61466, 73254, 92199, 97672, 122932, 146508, 184398, 245864, 293016, 368796, 737592, 891257, 1782514, 2673771, 3565028, 5347542, 7130056, 10695084, 21390168]

約数ペア:

[(1, 21390168), (2, 10695084), (3, 7130056), (4, 5347542), (6, 3565028), (8, 2673771), (12, 1782514), (24, 891257), (29, 737592), (58, 368796), (73, 293016), (87, 245864), (116, 184398), (146, 146508), (174, 122932), (219, 97672), (232, 92199), (292, 73254), (348, 61466), (421, 50808), (438, 48836), (584, 36627), (696, 30733), (842, 25404), (876, 24418), (1263, 16936), (1684, 12702), (1752, 12209), (2117, 10104), (2526, 8468), (3368, 6351), (4234, 5052)]