21125630

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{751}}^1$

素因数の和:884

約数の個数: 32

約数和(自身を含む): 39795840

約数和(自身を除く): 18670210

約数列:

[1, 2, 5, 10, 29, 58, 97, 145, 194, 290, 485, 751, 970, 1502, 2813, 3755, 5626, 7510, 14065, 21779, 28130, 43558, 72847, 108895, 145694, 217790, 364235, 728470, 2112563, 4225126, 10562815, 21125630]

約数ペア:

[(1, 21125630), (2, 10562815), (5, 4225126), (10, 2112563), (29, 728470), (58, 364235), (97, 217790), (145, 145694), (194, 108895), (290, 72847), (485, 43558), (751, 28130), (970, 21779), (1502, 14065), (2813, 7510), (3755, 5626)]