21816652

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{887}}^1$

素因数の和:958

約数の個数: 48

約数和(自身を含む): 45948672

約数和(自身を除く): 24132020

約数列:

[1, 2, 4, 11, 13, 22, 26, 43, 44, 52, 86, 143, 172, 286, 473, 559, 572, 887, 946, 1118, 1774, 1892, 2236, 3548, 6149, 9757, 11531, 12298, 19514, 23062, 24596, 38141, 39028, 46124, 76282, 126841, 152564, 253682, 419551, 495833, 507364, 839102, 991666, 1678204, 1983332, 5454163, 10908326, 21816652]

約数ペア:

[(1, 21816652), (2, 10908326), (4, 5454163), (11, 1983332), (13, 1678204), (22, 991666), (26, 839102), (43, 507364), (44, 495833), (52, 419551), (86, 253682), (143, 152564), (172, 126841), (286, 76282), (473, 46124), (559, 39028), (572, 38141), (887, 24596), (946, 23062), (1118, 19514), (1774, 12298), (1892, 11531), (2236, 9757), (3548, 6149)]