21479488

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:275

約数の個数: 56

約数和(自身を含む): 44988480

約数和(自身を除く): 23508992

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 71, 116, 142, 163, 232, 284, 326, 464, 568, 652, 928, 1136, 1304, 1856, 2059, 2272, 2608, 4118, 4544, 4727, 5216, 8236, 9454, 10432, 11573, 16472, 18908, 23146, 32944, 37816, 46292, 65888, 75632, 92584, 131776, 151264, 185168, 302528, 335617, 370336, 671234, 740672, 1342468, 2684936, 5369872, 10739744, 21479488]

約数ペア:

[(1, 21479488), (2, 10739744), (4, 5369872), (8, 2684936), (16, 1342468), (29, 740672), (32, 671234), (58, 370336), (64, 335617), (71, 302528), (116, 185168), (142, 151264), (163, 131776), (232, 92584), (284, 75632), (326, 65888), (464, 46292), (568, 37816), (652, 32944), (928, 23146), (1136, 18908), (1304, 16472), (1856, 11573), (2059, 10432), (2272, 9454), (2608, 8236), (4118, 5216), (4544, 4727)]