12991232

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{1637}}^1$

素因数の和:1684

約数の個数: 36

約数和(自身を含む): 26784576

約数和(自身を除く): 13793344

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1637, 1984, 3274, 3968, 6548, 7936, 13096, 26192, 50747, 52384, 101494, 104768, 202988, 209536, 405976, 419072, 811952, 1623904, 3247808, 6495616, 12991232]

約数ペア:

[(1, 12991232), (2, 6495616), (4, 3247808), (8, 1623904), (16, 811952), (31, 419072), (32, 405976), (62, 209536), (64, 202988), (124, 104768), (128, 101494), (248, 52384), (256, 50747), (496, 26192), (992, 13096), (1637, 7936), (1984, 6548), (3274, 3968)]