21564530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5351}}^1$

素因数の和:5402

約数の個数: 32

約数和(自身を含む): 43158528

約数和(自身を除く): 21593998

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 5351, 10702, 26755, 53510, 69563, 139126, 165881, 331762, 347815, 695630, 829405, 1658810, 2156453, 4312906, 10782265, 21564530]

約数ペア:

[(1, 21564530), (2, 10782265), (5, 4312906), (10, 2156453), (13, 1658810), (26, 829405), (31, 695630), (62, 347815), (65, 331762), (130, 165881), (155, 139126), (310, 69563), (403, 53510), (806, 26755), (2015, 10702), (4030, 5351)]