21554490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1847}}^1$

素因数の和:2246

約数の個数: 32

約数和(自身を含む): 51891840

約数和(自身を除く): 30337350

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 389, 778, 1167, 1847, 1945, 2334, 3694, 3890, 5541, 5835, 9235, 11082, 11670, 18470, 27705, 55410, 718483, 1436966, 2155449, 3592415, 4310898, 7184830, 10777245, 21554490]

約数ペア:

[(1, 21554490), (2, 10777245), (3, 7184830), (5, 4310898), (6, 3592415), (10, 2155449), (15, 1436966), (30, 718483), (389, 55410), (778, 27705), (1167, 18470), (1847, 11670), (1945, 11082), (2334, 9235), (3694, 5835), (3890, 5541)]