21398460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{5323}}^1$

素因数の和:5402

約数の個数: 48

約数和(自身を含む): 60821376

約数和(自身を除く): 39422916

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 67, 134, 201, 268, 335, 402, 670, 804, 1005, 1340, 2010, 4020, 5323, 10646, 15969, 21292, 26615, 31938, 53230, 63876, 79845, 106460, 159690, 319380, 356641, 713282, 1069923, 1426564, 1783205, 2139846, 3566410, 4279692, 5349615, 7132820, 10699230, 21398460]

約数ペア:

[(1, 21398460), (2, 10699230), (3, 7132820), (4, 5349615), (5, 4279692), (6, 3566410), (10, 2139846), (12, 1783205), (15, 1426564), (20, 1069923), (30, 713282), (60, 356641), (67, 319380), (134, 159690), (201, 106460), (268, 79845), (335, 63876), (402, 53230), (670, 31938), (804, 26615), (1005, 21292), (1340, 15969), (2010, 10646), (4020, 5323)]