21976380

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{40697}}^1$

素因数の和:40715

約数の個数: 48

約数和(自身を含む): 68372640

約数和(自身を除く): 46396260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 40697, 81394, 122091, 162788, 203485, 244182, 366273, 406970, 488364, 610455, 732546, 813940, 1098819, 1220910, 1465092, 1831365, 2197638, 2441820, 3662730, 4395276, 5494095, 7325460, 10988190, 21976380]

約数ペア:

[(1, 21976380), (2, 10988190), (3, 7325460), (4, 5494095), (5, 4395276), (6, 3662730), (9, 2441820), (10, 2197638), (12, 1831365), (15, 1465092), (18, 1220910), (20, 1098819), (27, 813940), (30, 732546), (36, 610455), (45, 488364), (54, 406970), (60, 366273), (90, 244182), (108, 203485), (135, 162788), (180, 122091), (270, 81394), (540, 40697)]