17918781699

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{6563}}^1$

素因数の和:6796

約数の個数: 64

約数和(自身を含む): 30030142464

約数和(自身を除く): 12111360765

約数列:

[1, 3, 7, 13, 21, 39, 73, 91, 137, 219, 273, 411, 511, 949, 959, 1533, 1781, 2847, 2877, 5343, 6563, 6643, 10001, 12467, 19689, 19929, 30003, 37401, 45941, 70007, 85319, 130013, 137823, 210021, 255957, 390039, 479099, 597233, 899131, 910091, 1437297, 1791699, 2697393, 2730273, 3353693, 6228287, 6293917, 10061079, 11688703, 18684861, 18881751, 35066109, 43598009, 65636563, 81820921, 130794027, 196909689, 245462763, 459455941, 853275319, 1378367823, 2559825957, 5972927233, 17918781699]

約数ペア:

[(1, 17918781699), (3, 5972927233), (7, 2559825957), (13, 1378367823), (21, 853275319), (39, 459455941), (73, 245462763), (91, 196909689), (137, 130794027), (219, 81820921), (273, 65636563), (411, 43598009), (511, 35066109), (949, 18881751), (959, 18684861), (1533, 11688703), (1781, 10061079), (2847, 6293917), (2877, 6228287), (5343, 3353693), (6563, 2730273), (6643, 2697393), (10001, 1791699), (12467, 1437297), (19689, 910091), (19929, 899131), (30003, 597233), (37401, 479099), (45941, 390039), (70007, 255957), (85319, 210021), (130013, 137823)]