20897430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9811}}^1$

素因数の和:9892

約数の個数: 32

約数和(自身を含む): 50865408

約数和(自身を除く): 29967978

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130, 9811, 19622, 29433, 49055, 58866, 98110, 147165, 294330, 696581, 1393162, 2089743, 3482905, 4179486, 6965810, 10448715, 20897430]

約数ペア:

[(1, 20897430), (2, 10448715), (3, 6965810), (5, 4179486), (6, 3482905), (10, 2089743), (15, 1393162), (30, 696581), (71, 294330), (142, 147165), (213, 98110), (355, 58866), (426, 49055), (710, 29433), (1065, 19622), (2130, 9811)]