19949886

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5303}}^1$

素因数の和:5341

約数の個数: 48

約数和(自身を含む): 49645440

約数和(自身を除く): 29695554

約数列:

[1, 2, 3, 6, 9, 11, 18, 19, 22, 33, 38, 57, 66, 99, 114, 171, 198, 209, 342, 418, 627, 1254, 1881, 3762, 5303, 10606, 15909, 31818, 47727, 58333, 95454, 100757, 116666, 174999, 201514, 302271, 349998, 524997, 604542, 906813, 1049994, 1108327, 1813626, 2216654, 3324981, 6649962, 9974943, 19949886]

約数ペア:

[(1, 19949886), (2, 9974943), (3, 6649962), (6, 3324981), (9, 2216654), (11, 1813626), (18, 1108327), (19, 1049994), (22, 906813), (33, 604542), (38, 524997), (57, 349998), (66, 302271), (99, 201514), (114, 174999), (171, 116666), (198, 100757), (209, 95454), (342, 58333), (418, 47727), (627, 31818), (1254, 15909), (1881, 10606), (3762, 5303)]