21550208

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5431}}^1$

素因数の和:5476

約数の個数: 32

約数和(自身を含む): 44325120

約数和(自身を除く): 22774912

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5431, 10862, 21724, 43448, 86896, 168361, 173792, 336722, 347584, 673444, 695168, 1346888, 2693776, 5387552, 10775104, 21550208]

約数ペア:

[(1, 21550208), (2, 10775104), (4, 5387552), (8, 2693776), (16, 1346888), (31, 695168), (32, 673444), (62, 347584), (64, 336722), (124, 173792), (128, 168361), (248, 86896), (496, 43448), (992, 21724), (1984, 10862), (3968, 5431)]