15321215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 22880256

約数和(自身を除く): 7559041

約数列:

[1, 5, 7, 13, 35, 65, 91, 151, 223, 455, 755, 1057, 1115, 1561, 1963, 2899, 5285, 7805, 9815, 13741, 14495, 20293, 33673, 68705, 101465, 168365, 235711, 437749, 1178555, 2188745, 3064243, 15321215]

約数ペア:

[(1, 15321215), (5, 3064243), (7, 2188745), (13, 1178555), (35, 437749), (65, 235711), (91, 168365), (151, 101465), (223, 68705), (455, 33673), (755, 20293), (1057, 14495), (1115, 13741), (1561, 9815), (1963, 7805), (2899, 5285)]