21920970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16993}}^1$

素因数の和:17046

約数の個数: 32

約数和(自身を含む): 53836992

約数和(自身を除く): 31916022

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16993, 33986, 50979, 84965, 101958, 169930, 254895, 509790, 730699, 1461398, 2192097, 3653495, 4384194, 7306990, 10960485, 21920970]

約数ペア:

[(1, 21920970), (2, 10960485), (3, 7306990), (5, 4384194), (6, 3653495), (10, 2192097), (15, 1461398), (30, 730699), (43, 509790), (86, 254895), (129, 169930), (215, 101958), (258, 84965), (430, 50979), (645, 33986), (1290, 16993)]