21131640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{58699}}^1$

素因数の和:58716

約数の個数: 48

約数和(自身を含む): 68679000

約数和(自身を除く): 47547360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 58699, 117398, 176097, 234796, 293495, 352194, 469592, 528291, 586990, 704388, 880485, 1056582, 1173980, 1408776, 1760970, 2113164, 2347960, 2641455, 3521940, 4226328, 5282910, 7043880, 10565820, 21131640]

約数ペア:

[(1, 21131640), (2, 10565820), (3, 7043880), (4, 5282910), (5, 4226328), (6, 3521940), (8, 2641455), (9, 2347960), (10, 2113164), (12, 1760970), (15, 1408776), (18, 1173980), (20, 1056582), (24, 880485), (30, 704388), (36, 586990), (40, 528291), (45, 469592), (60, 352194), (72, 293495), (90, 234796), (120, 176097), (180, 117398), (360, 58699)]