21663456

素因数分解:

$2^5\times 3^1\times {\mathrm{113}}^1\times {\mathrm{1997}}^1$

素因数の和:2123

約数の個数: 48

約数和(自身を含む): 57398544

約数和(自身を除く): 35735088

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 113, 226, 339, 452, 678, 904, 1356, 1808, 1997, 2712, 3616, 3994, 5424, 5991, 7988, 10848, 11982, 15976, 23964, 31952, 47928, 63904, 95856, 191712, 225661, 451322, 676983, 902644, 1353966, 1805288, 2707932, 3610576, 5415864, 7221152, 10831728, 21663456]

約数ペア:

[(1, 21663456), (2, 10831728), (3, 7221152), (4, 5415864), (6, 3610576), (8, 2707932), (12, 1805288), (16, 1353966), (24, 902644), (32, 676983), (48, 451322), (96, 225661), (113, 191712), (226, 95856), (339, 63904), (452, 47928), (678, 31952), (904, 23964), (1356, 15976), (1808, 11982), (1997, 10848), (2712, 7988), (3616, 5991), (3994, 5424)]