21301852

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{223}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 44255232

約数和(自身を除く): 22953380

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 167, 223, 286, 334, 446, 572, 668, 892, 1837, 2171, 2453, 2899, 3674, 4342, 4906, 5798, 7348, 8684, 9812, 11596, 23881, 31889, 37241, 47762, 63778, 74482, 95524, 127556, 148964, 409651, 484133, 819302, 968266, 1638604, 1936532, 5325463, 10650926, 21301852]

約数ペア:

[(1, 21301852), (2, 10650926), (4, 5325463), (11, 1936532), (13, 1638604), (22, 968266), (26, 819302), (44, 484133), (52, 409651), (143, 148964), (167, 127556), (223, 95524), (286, 74482), (334, 63778), (446, 47762), (572, 37241), (668, 31889), (892, 23881), (1837, 11596), (2171, 9812), (2453, 8684), (2899, 7348), (3674, 5798), (4342, 4906)]