20954853

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 33945600

約数和(自身を除く): 12990747

約数列:

[1, 3, 9, 19, 31, 57, 59, 67, 93, 171, 177, 201, 279, 531, 589, 603, 1121, 1273, 1767, 1829, 2077, 3363, 3819, 3953, 5301, 5487, 6231, 10089, 11457, 11859, 16461, 18693, 34751, 35577, 39463, 75107, 104253, 118389, 122543, 225321, 312759, 355167, 367629, 675963, 1102887, 2328317, 6984951, 20954853]

約数ペア:

[(1, 20954853), (3, 6984951), (9, 2328317), (19, 1102887), (31, 675963), (57, 367629), (59, 355167), (67, 312759), (93, 225321), (171, 122543), (177, 118389), (201, 104253), (279, 75107), (531, 39463), (589, 35577), (603, 34751), (1121, 18693), (1273, 16461), (1767, 11859), (1829, 11457), (2077, 10089), (3363, 6231), (3819, 5487), (3953, 5301)]