21572032

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 56

約数和(自身を含む): 45061632

約数和(自身を除く): 23489600

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 83, 124, 131, 166, 248, 262, 332, 496, 524, 664, 992, 1048, 1328, 1984, 2096, 2573, 2656, 4061, 4192, 5146, 5312, 8122, 8384, 10292, 10873, 16244, 20584, 21746, 32488, 41168, 43492, 64976, 82336, 86984, 129952, 164672, 173968, 259904, 337063, 347936, 674126, 695872, 1348252, 2696504, 5393008, 10786016, 21572032]

約数ペア:

[(1, 21572032), (2, 10786016), (4, 5393008), (8, 2696504), (16, 1348252), (31, 695872), (32, 674126), (62, 347936), (64, 337063), (83, 259904), (124, 173968), (131, 164672), (166, 129952), (248, 86984), (262, 82336), (332, 64976), (496, 43492), (524, 41168), (664, 32488), (992, 21746), (1048, 20584), (1328, 16244), (1984, 10873), (2096, 10292), (2573, 8384), (2656, 8122), (4061, 5312), (4192, 5146)]