18723386556

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{721351}}^1$

素因数の和:721471

約数の個数: 72

約数和(自身を含む): 54615002624

約数和(自身を除く): 35891616068

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 103, 126, 206, 252, 309, 412, 618, 721, 927, 1236, 1442, 1854, 2163, 2884, 3708, 4326, 6489, 8652, 12978, 25956, 721351, 1442702, 2164053, 2885404, 4328106, 5049457, 6492159, 8656212, 10098914, 12984318, 15148371, 20197828, 25968636, 30296742, 45445113, 60593484, 74299153, 90890226, 148598306, 181780452, 222897459, 297196612, 445794918, 520094071, 668692377, 891589836, 1040188142, 1337384754, 1560282213, 2080376284, 2674769508, 3120564426, 4680846639, 6241128852, 9361693278, 18723386556]

約数ペア:

[(1, 18723386556), (2, 9361693278), (3, 6241128852), (4, 4680846639), (6, 3120564426), (7, 2674769508), (9, 2080376284), (12, 1560282213), (14, 1337384754), (18, 1040188142), (21, 891589836), (28, 668692377), (36, 520094071), (42, 445794918), (63, 297196612), (84, 222897459), (103, 181780452), (126, 148598306), (206, 90890226), (252, 74299153), (309, 60593484), (412, 45445113), (618, 30296742), (721, 25968636), (927, 20197828), (1236, 15148371), (1442, 12984318), (1854, 10098914), (2163, 8656212), (2884, 6492159), (3708, 5049457), (4326, 4328106), (6489, 2885404), (8652, 2164053), (12978, 1442702), (25956, 721351)]