21708704

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 44793000

約数和(自身を除く): 23084296

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 116, 149, 157, 232, 298, 314, 464, 596, 628, 928, 1192, 1256, 2384, 2512, 4321, 4553, 4768, 5024, 8642, 9106, 17284, 18212, 23393, 34568, 36424, 46786, 69136, 72848, 93572, 138272, 145696, 187144, 374288, 678397, 748576, 1356794, 2713588, 5427176, 10854352, 21708704]

約数ペア:

[(1, 21708704), (2, 10854352), (4, 5427176), (8, 2713588), (16, 1356794), (29, 748576), (32, 678397), (58, 374288), (116, 187144), (149, 145696), (157, 138272), (232, 93572), (298, 72848), (314, 69136), (464, 46786), (596, 36424), (628, 34568), (928, 23393), (1192, 18212), (1256, 17284), (2384, 9106), (2512, 8642), (4321, 5024), (4553, 4768)]