18700731

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{919}}^1$

素因数の和:968

約数の個数: 48

約数和(自身を含む): 34444800

約数和(自身を除く): 15744069

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 133, 153, 171, 323, 357, 399, 919, 969, 1071, 1197, 2261, 2757, 2907, 6433, 6783, 8271, 15623, 17461, 19299, 20349, 46869, 52383, 57897, 109361, 122227, 140607, 157149, 296837, 328083, 366681, 890511, 984249, 1100043, 2077859, 2671533, 6233577, 18700731]

約数ペア:

[(1, 18700731), (3, 6233577), (7, 2671533), (9, 2077859), (17, 1100043), (19, 984249), (21, 890511), (51, 366681), (57, 328083), (63, 296837), (119, 157149), (133, 140607), (153, 122227), (171, 109361), (323, 57897), (357, 52383), (399, 46869), (919, 20349), (969, 19299), (1071, 17461), (1197, 15623), (2261, 8271), (2757, 6783), (2907, 6433)]