21261495

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1321}}^1$

素因数の和:1395

約数の個数: 32

約数和(自身を含む): 36169920

約数和(自身を除く): 14908425

約数列:

[1, 3, 5, 15, 29, 37, 87, 111, 145, 185, 435, 555, 1073, 1321, 3219, 3963, 5365, 6605, 16095, 19815, 38309, 48877, 114927, 146631, 191545, 244385, 574635, 733155, 1417433, 4252299, 7087165, 21261495]

約数ペア:

[(1, 21261495), (3, 7087165), (5, 4252299), (15, 1417433), (29, 733155), (37, 574635), (87, 244385), (111, 191545), (145, 146631), (185, 114927), (435, 48877), (555, 38309), (1073, 19815), (1321, 16095), (3219, 6605), (3963, 5365)]