19178996879

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{997}}^1$

素因数の和:1332

約数の個数: 48

約数和(自身を含む): 24030466752

約数和(自身を除く): 4851469873

約数列:

[1, 7, 17, 37, 119, 257, 259, 289, 629, 997, 1799, 2023, 4369, 4403, 6979, 9509, 10693, 16949, 30583, 36889, 66563, 74273, 74851, 118643, 161653, 256229, 258223, 288133, 519911, 627113, 1131571, 1793603, 2016931, 2748101, 4355893, 4389791, 9480473, 10660921, 19236707, 30491251, 66363311, 74050181, 74626447, 161168041, 518351267, 1128176287, 2739856697, 19178996879]

約数ペア:

[(1, 19178996879), (7, 2739856697), (17, 1128176287), (37, 518351267), (119, 161168041), (257, 74626447), (259, 74050181), (289, 66363311), (629, 30491251), (997, 19236707), (1799, 10660921), (2023, 9480473), (4369, 4389791), (4403, 4355893), (6979, 2748101), (9509, 2016931), (10693, 1793603), (16949, 1131571), (30583, 627113), (36889, 519911), (66563, 288133), (74273, 258223), (74851, 256229), (118643, 161653)]