213475820

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{19163}}^1$

素因数の和:19729

約数の個数: 24

約数和(自身を含む): 449127504

約数和(自身を除く): 235651684

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 2228, 2785, 5570, 11140, 19163, 38326, 76652, 95815, 191630, 383260, 10673791, 21347582, 42695164, 53368955, 106737910, 213475820]

約数ペア:

[(1, 213475820), (2, 106737910), (4, 53368955), (5, 42695164), (10, 21347582), (20, 10673791), (557, 383260), (1114, 191630), (2228, 95815), (2785, 76652), (5570, 38326), (11140, 19163)]