19741552

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:361

約数の個数: 40

約数和(自身を含む): 39439440

約数和(自身を除く): 19697888

約数列:

[1, 2, 4, 8, 16, 61, 113, 122, 179, 226, 244, 358, 452, 488, 716, 904, 976, 1432, 1808, 2864, 6893, 10919, 13786, 20227, 21838, 27572, 40454, 43676, 55144, 80908, 87352, 110288, 161816, 174704, 323632, 1233847, 2467694, 4935388, 9870776, 19741552]

約数ペア:

[(1, 19741552), (2, 9870776), (4, 4935388), (8, 2467694), (16, 1233847), (61, 323632), (113, 174704), (122, 161816), (179, 110288), (226, 87352), (244, 80908), (358, 55144), (452, 43676), (488, 40454), (716, 27572), (904, 21838), (976, 20227), (1432, 13786), (1808, 10919), (2864, 6893)]