19916848

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2251}}^1$

素因数の和:2345

約数の個数: 40

約数和(自身を含む): 44679680

約数和(自身を除く): 24762832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 158, 316, 553, 632, 1106, 1264, 2212, 2251, 4424, 4502, 8848, 9004, 15757, 18008, 31514, 36016, 63028, 126056, 177829, 252112, 355658, 711316, 1244803, 1422632, 2489606, 2845264, 4979212, 9958424, 19916848]

約数ペア:

[(1, 19916848), (2, 9958424), (4, 4979212), (7, 2845264), (8, 2489606), (14, 1422632), (16, 1244803), (28, 711316), (56, 355658), (79, 252112), (112, 177829), (158, 126056), (316, 63028), (553, 36016), (632, 31514), (1106, 18008), (1264, 15757), (2212, 9004), (2251, 8848), (4424, 4502)]