20986482

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:375

約数の個数: 48

約数和(自身を含む): 46692576

約数和(自身を除く): 25706094

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 121, 137, 211, 242, 274, 363, 411, 422, 633, 726, 822, 1266, 1507, 2321, 3014, 4521, 4642, 6963, 9042, 13926, 16577, 25531, 28907, 33154, 49731, 51062, 57814, 76593, 86721, 99462, 153186, 173442, 317977, 635954, 953931, 1907862, 3497747, 6995494, 10493241, 20986482]

約数ペア:

[(1, 20986482), (2, 10493241), (3, 6995494), (6, 3497747), (11, 1907862), (22, 953931), (33, 635954), (66, 317977), (121, 173442), (137, 153186), (211, 99462), (242, 86721), (274, 76593), (363, 57814), (411, 51062), (422, 49731), (633, 33154), (726, 28907), (822, 25531), (1266, 16577), (1507, 13926), (2321, 9042), (3014, 6963), (4521, 4642)]