21804951266

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{81973501}}^1$

素因数の和:81973529

約数の個数: 16

約数和(自身を含む): 39347280960

約数和(自身を除く): 17542329694

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 81973501, 163947002, 573814507, 1147629014, 1557496519, 3114993038, 10902475633, 21804951266]

約数ペア:

[(1, 21804951266), (2, 10902475633), (7, 3114993038), (14, 1557496519), (19, 1147629014), (38, 573814507), (133, 163947002), (266, 81973501)]