21310360

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18371}}^1$

素因数の和:18411

約数の個数: 32

約数和(自身を含む): 49604400

約数和(自身を除く): 28294040

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18371, 36742, 73484, 91855, 146968, 183710, 367420, 532759, 734840, 1065518, 2131036, 2663795, 4262072, 5327590, 10655180, 21310360]

約数ペア:

[(1, 21310360), (2, 10655180), (4, 5327590), (5, 4262072), (8, 2663795), (10, 2131036), (20, 1065518), (29, 734840), (40, 532759), (58, 367420), (116, 183710), (145, 146968), (232, 91855), (290, 73484), (580, 36742), (1160, 18371)]