291213910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131771}}^1$

素因数の和:131808

約数の個数: 32

約数和(自身を含む): 597717792

約数和(自身を除く): 306503882

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 131771, 263542, 658855, 1317710, 1713023, 2240107, 3426046, 4480214, 8565115, 11200535, 17130230, 22401070, 29121391, 58242782, 145606955, 291213910]

約数ペア:

[(1, 291213910), (2, 145606955), (5, 58242782), (10, 29121391), (13, 22401070), (17, 17130230), (26, 11200535), (34, 8565115), (65, 4480214), (85, 3426046), (130, 2240107), (170, 1713023), (221, 1317710), (442, 658855), (1105, 263542), (2210, 131771)]