19620783

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23957}}^1$

素因数の和:23983

約数の個数: 24

約数和(自身を含む): 34882848

約数和(自身を除く): 15262065

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 23957, 71871, 167699, 215613, 311441, 503097, 934323, 1509291, 2180087, 2802969, 6540261, 19620783]

約数ペア:

[(1, 19620783), (3, 6540261), (7, 2802969), (9, 2180087), (13, 1509291), (21, 934323), (39, 503097), (63, 311441), (91, 215613), (117, 167699), (273, 71871), (819, 23957)]