18655494

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1279}}^1$

素因数の和:1325

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 27793146

約数列:

[1, 2, 3, 6, 11, 13, 17, 22, 26, 33, 34, 39, 51, 66, 78, 102, 143, 187, 221, 286, 374, 429, 442, 561, 663, 858, 1122, 1279, 1326, 2431, 2558, 3837, 4862, 7293, 7674, 14069, 14586, 16627, 21743, 28138, 33254, 42207, 43486, 49881, 65229, 84414, 99762, 130458, 182897, 239173, 282659, 365794, 478346, 548691, 565318, 717519, 847977, 1097382, 1435038, 1695954, 3109249, 6218498, 9327747, 18655494]

約数ペア:

[(1, 18655494), (2, 9327747), (3, 6218498), (6, 3109249), (11, 1695954), (13, 1435038), (17, 1097382), (22, 847977), (26, 717519), (33, 565318), (34, 548691), (39, 478346), (51, 365794), (66, 282659), (78, 239173), (102, 182897), (143, 130458), (187, 99762), (221, 84414), (286, 65229), (374, 49881), (429, 43486), (442, 42207), (561, 33254), (663, 28138), (858, 21743), (1122, 16627), (1279, 14586), (1326, 14069), (2431, 7674), (2558, 7293), (3837, 4862)]