7720209

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 13578240

約数和(自身を除く): 5858031

約数列:

[1, 3, 7, 9, 21, 31, 59, 63, 67, 93, 177, 201, 217, 279, 413, 469, 531, 603, 651, 1239, 1407, 1829, 1953, 2077, 3717, 3953, 4221, 5487, 6231, 11859, 12803, 14539, 16461, 18693, 27671, 35577, 38409, 43617, 83013, 115227, 122543, 130851, 249039, 367629, 857801, 1102887, 2573403, 7720209]

約数ペア:

[(1, 7720209), (3, 2573403), (7, 1102887), (9, 857801), (21, 367629), (31, 249039), (59, 130851), (63, 122543), (67, 115227), (93, 83013), (177, 43617), (201, 38409), (217, 35577), (279, 27671), (413, 18693), (469, 16461), (531, 14539), (603, 12803), (651, 11859), (1239, 6231), (1407, 5487), (1829, 4221), (1953, 3953), (2077, 3717)]