21530368

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{2713}}^1$

素因数の和:2760

約数の個数: 36

約数和(自身を含む): 44379328

約数和(自身を除く): 22848960

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 2713, 3968, 5426, 7936, 10852, 21704, 43408, 84103, 86816, 168206, 173632, 336412, 347264, 672824, 694528, 1345648, 2691296, 5382592, 10765184, 21530368]

約数ペア:

[(1, 21530368), (2, 10765184), (4, 5382592), (8, 2691296), (16, 1345648), (31, 694528), (32, 672824), (62, 347264), (64, 336412), (124, 173632), (128, 168206), (248, 86816), (256, 84103), (496, 43408), (992, 21704), (1984, 10852), (2713, 7936), (3968, 5426)]