21018830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6983}}^1$

素因数の和:7040

約数の個数: 32

約数和(自身を含む): 44250624

約数和(自身を除く): 23231794

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 602, 1505, 3010, 6983, 13966, 34915, 48881, 69830, 97762, 244405, 300269, 488810, 600538, 1501345, 2101883, 3002690, 4203766, 10509415, 21018830]

約数ペア:

[(1, 21018830), (2, 10509415), (5, 4203766), (7, 3002690), (10, 2101883), (14, 1501345), (35, 600538), (43, 488810), (70, 300269), (86, 244405), (215, 97762), (301, 69830), (430, 48881), (602, 34915), (1505, 13966), (3010, 6983)]