18473390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{643}}^1$

素因数の和:693

約数の個数: 48

約数和(自身を含む): 38184048

約数和(自身を除く): 19710658

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 169, 170, 221, 338, 442, 643, 845, 1105, 1286, 1690, 2210, 2873, 3215, 5746, 6430, 8359, 10931, 14365, 16718, 21862, 28730, 41795, 54655, 83590, 108667, 109310, 142103, 217334, 284206, 543335, 710515, 1086670, 1421030, 1847339, 3694678, 9236695, 18473390]

約数ペア:

[(1, 18473390), (2, 9236695), (5, 3694678), (10, 1847339), (13, 1421030), (17, 1086670), (26, 710515), (34, 543335), (65, 284206), (85, 217334), (130, 142103), (169, 109310), (170, 108667), (221, 83590), (338, 54655), (442, 41795), (643, 28730), (845, 21862), (1105, 16718), (1286, 14365), (1690, 10931), (2210, 8359), (2873, 6430), (3215, 5746)]