20973810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4889}}^1$

素因数の和:4923

約数の個数: 64

約数和(自身を含む): 59149440

約数和(自身を除く): 38175630

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 78, 110, 130, 143, 165, 195, 286, 330, 390, 429, 715, 858, 1430, 2145, 4290, 4889, 9778, 14667, 24445, 29334, 48890, 53779, 63557, 73335, 107558, 127114, 146670, 161337, 190671, 268895, 317785, 322674, 381342, 537790, 635570, 699127, 806685, 953355, 1398254, 1613370, 1906710, 2097381, 3495635, 4194762, 6991270, 10486905, 20973810]

約数ペア:

[(1, 20973810), (2, 10486905), (3, 6991270), (5, 4194762), (6, 3495635), (10, 2097381), (11, 1906710), (13, 1613370), (15, 1398254), (22, 953355), (26, 806685), (30, 699127), (33, 635570), (39, 537790), (55, 381342), (65, 322674), (66, 317785), (78, 268895), (110, 190671), (130, 161337), (143, 146670), (165, 127114), (195, 107558), (286, 73335), (330, 63557), (390, 53779), (429, 48890), (715, 29334), (858, 24445), (1430, 14667), (2145, 9778), (4290, 4889)]