21857703

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{151}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 34378752

約数和(自身を除く): 12521049

約数列:

[1, 3, 7, 21, 61, 113, 151, 183, 339, 427, 453, 791, 1057, 1281, 2373, 3171, 6893, 9211, 17063, 20679, 27633, 48251, 51189, 64477, 119441, 144753, 193431, 358323, 1040843, 3122529, 7285901, 21857703]

約数ペア:

[(1, 21857703), (3, 7285901), (7, 3122529), (21, 1040843), (61, 358323), (113, 193431), (151, 144753), (183, 119441), (339, 64477), (427, 51189), (453, 48251), (791, 27633), (1057, 20679), (1281, 17063), (2373, 9211), (3171, 6893)]