21876505

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{491}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 32117760

約数和(自身を除く): 10241255

約数列:

[1, 5, 7, 19, 35, 67, 95, 133, 335, 469, 491, 665, 1273, 2345, 2455, 3437, 6365, 8911, 9329, 17185, 32897, 44555, 46645, 65303, 164485, 230279, 326515, 625043, 1151395, 3125215, 4375301, 21876505]

約数ペア:

[(1, 21876505), (5, 4375301), (7, 3125215), (19, 1151395), (35, 625043), (67, 326515), (95, 230279), (133, 164485), (335, 65303), (469, 46645), (491, 44555), (665, 32897), (1273, 17185), (2345, 9329), (2455, 8911), (3437, 6365)]