21726784

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:323

約数の個数: 56

約数和(自身を含む): 45646848

約数和(自身を除く): 23920064

約数列:

[1, 2, 4, 8, 16, 31, 32, 47, 62, 64, 94, 124, 188, 233, 248, 376, 466, 496, 752, 932, 992, 1457, 1504, 1864, 1984, 2914, 3008, 3728, 5828, 7223, 7456, 10951, 11656, 14446, 14912, 21902, 23312, 28892, 43804, 46624, 57784, 87608, 93248, 115568, 175216, 231136, 339481, 350432, 462272, 678962, 700864, 1357924, 2715848, 5431696, 10863392, 21726784]

約数ペア:

[(1, 21726784), (2, 10863392), (4, 5431696), (8, 2715848), (16, 1357924), (31, 700864), (32, 678962), (47, 462272), (62, 350432), (64, 339481), (94, 231136), (124, 175216), (188, 115568), (233, 93248), (248, 87608), (376, 57784), (466, 46624), (496, 43804), (752, 28892), (932, 23312), (992, 21902), (1457, 14912), (1504, 14446), (1864, 11656), (1984, 10951), (2914, 7456), (3008, 7223), (3728, 5828)]