18618831

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 34115328

約数和(自身を除く): 15496497

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 67, 77, 99, 201, 231, 401, 469, 603, 693, 737, 1203, 1407, 2211, 2807, 3609, 4221, 4411, 5159, 6633, 8421, 13233, 15477, 25263, 26867, 30877, 39699, 46431, 80601, 92631, 188069, 241803, 277893, 295537, 564207, 886611, 1692621, 2068759, 2659833, 6206277, 18618831]

約数ペア:

[(1, 18618831), (3, 6206277), (7, 2659833), (9, 2068759), (11, 1692621), (21, 886611), (33, 564207), (63, 295537), (67, 277893), (77, 241803), (99, 188069), (201, 92631), (231, 80601), (401, 46431), (469, 39699), (603, 30877), (693, 26867), (737, 25263), (1203, 15477), (1407, 13233), (2211, 8421), (2807, 6633), (3609, 5159), (4221, 4411)]