18311818

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:151

約数の個数: 64

約数和(自身を含む): 35458560

約数和(自身を除く): 17146742

約数列:

[1, 2, 7, 14, 23, 29, 37, 46, 53, 58, 74, 106, 161, 203, 259, 322, 371, 406, 518, 667, 742, 851, 1073, 1219, 1334, 1537, 1702, 1961, 2146, 2438, 3074, 3922, 4669, 5957, 7511, 8533, 9338, 10759, 11914, 13727, 15022, 17066, 21518, 24679, 27454, 35351, 45103, 49358, 56869, 70702, 90206, 113738, 172753, 247457, 315721, 345506, 398083, 494914, 631442, 796166, 1307987, 2615974, 9155909, 18311818]

約数ペア:

[(1, 18311818), (2, 9155909), (7, 2615974), (14, 1307987), (23, 796166), (29, 631442), (37, 494914), (46, 398083), (53, 345506), (58, 315721), (74, 247457), (106, 172753), (161, 113738), (203, 90206), (259, 70702), (322, 56869), (371, 49358), (406, 45103), (518, 35351), (667, 27454), (742, 24679), (851, 21518), (1073, 17066), (1219, 15022), (1334, 13727), (1537, 11914), (1702, 10759), (1961, 9338), (2146, 8533), (2438, 7511), (3074, 5957), (3922, 4669)]