21018688

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:275

約数の個数: 56

約数和(自身を含む): 44256960

約数和(自身を除く): 23238272

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 109, 131, 184, 218, 262, 368, 436, 524, 736, 872, 1048, 1472, 1744, 2096, 2507, 3013, 3488, 4192, 5014, 6026, 6976, 8384, 10028, 12052, 14279, 20056, 24104, 28558, 40112, 48208, 57116, 80224, 96416, 114232, 160448, 192832, 228464, 328417, 456928, 656834, 913856, 1313668, 2627336, 5254672, 10509344, 21018688]

約数ペア:

[(1, 21018688), (2, 10509344), (4, 5254672), (8, 2627336), (16, 1313668), (23, 913856), (32, 656834), (46, 456928), (64, 328417), (92, 228464), (109, 192832), (131, 160448), (184, 114232), (218, 96416), (262, 80224), (368, 57116), (436, 48208), (524, 40112), (736, 28558), (872, 24104), (1048, 20056), (1472, 14279), (1744, 12052), (2096, 10028), (2507, 8384), (3013, 6976), (3488, 6026), (4192, 5014)]