17996979

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{461}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 32465664

約数和(自身を除く): 14468685

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 169, 231, 273, 429, 461, 507, 1001, 1183, 1383, 1859, 3003, 3227, 3549, 5071, 5577, 5993, 9681, 13013, 15213, 17979, 35497, 39039, 41951, 65923, 77909, 106491, 125853, 197769, 233727, 461461, 545363, 856999, 1384383, 1636089, 2570997, 5998993, 17996979]

約数ペア:

[(1, 17996979), (3, 5998993), (7, 2570997), (11, 1636089), (13, 1384383), (21, 856999), (33, 545363), (39, 461461), (77, 233727), (91, 197769), (143, 125853), (169, 106491), (231, 77909), (273, 65923), (429, 41951), (461, 39039), (507, 35497), (1001, 17979), (1183, 15213), (1383, 13013), (1859, 9681), (3003, 5993), (3227, 5577), (3549, 5071)]