21177170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4261}}^1$

素因数の和:4346

約数の個数: 32

約数和(自身を含む): 44188416

約数和(自身を除く): 23011246

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 4261, 4970, 8522, 21305, 29827, 42610, 59654, 149135, 298270, 302531, 605062, 1512655, 2117717, 3025310, 4235434, 10588585, 21177170]

約数ペア:

[(1, 21177170), (2, 10588585), (5, 4235434), (7, 3025310), (10, 2117717), (14, 1512655), (35, 605062), (70, 302531), (71, 298270), (142, 149135), (355, 59654), (497, 42610), (710, 29827), (994, 21305), (2485, 8522), (4261, 4970)]