21717431421

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{19512517}}^1$

素因数の和:19512580

約数の個数: 16

約数和(自身を含む): 33717631104

約数和(自身を除く): 12000199683

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 19512517, 58537551, 136587619, 409762857, 1034163401, 3102490203, 7239143807, 21717431421]

約数ペア:

[(1, 21717431421), (3, 7239143807), (7, 3102490203), (21, 1034163401), (53, 409762857), (159, 136587619), (371, 58537551), (1113, 19512517)]