21716786

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7019}}^1$

素因数の和:7058

約数の個数: 32

約数和(自身を含む): 42456960

約数和(自身を除く): 20740174

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 91, 119, 182, 221, 238, 442, 1547, 3094, 7019, 14038, 49133, 91247, 98266, 119323, 182494, 238646, 638729, 835261, 1277458, 1551199, 1670522, 3102398, 10858393, 21716786]

約数ペア:

[(1, 21716786), (2, 10858393), (7, 3102398), (13, 1670522), (14, 1551199), (17, 1277458), (26, 835261), (34, 638729), (91, 238646), (119, 182494), (182, 119323), (221, 98266), (238, 91247), (442, 49133), (1547, 14038), (3094, 7019)]