21545930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9929}}^1$

素因数の和:9974

約数の個数: 32

約数和(自身を含む): 45757440

約数和(自身を除く): 24211510

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9929, 19858, 49645, 69503, 99290, 139006, 307799, 347515, 615598, 695030, 1538995, 2154593, 3077990, 4309186, 10772965, 21545930]

約数ペア:

[(1, 21545930), (2, 10772965), (5, 4309186), (7, 3077990), (10, 2154593), (14, 1538995), (31, 695030), (35, 615598), (62, 347515), (70, 307799), (155, 139006), (217, 99290), (310, 69503), (434, 49645), (1085, 19858), (2170, 9929)]