18955053

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{383}}^1$

素因数の和:455

約数の個数: 40

約数和(自身を含む): 31223808

約数和(自身を除く): 12268755

約数列:

[1, 3, 9, 13, 27, 39, 47, 81, 117, 141, 351, 383, 423, 611, 1053, 1149, 1269, 1833, 3447, 3807, 4979, 5499, 10341, 14937, 16497, 18001, 31023, 44811, 49491, 54003, 134433, 162009, 234013, 403299, 486027, 702039, 1458081, 2106117, 6318351, 18955053]

約数ペア:

[(1, 18955053), (3, 6318351), (9, 2106117), (13, 1458081), (27, 702039), (39, 486027), (47, 403299), (81, 234013), (117, 162009), (141, 134433), (351, 54003), (383, 49491), (423, 44811), (611, 31023), (1053, 18001), (1149, 16497), (1269, 14937), (1833, 10341), (3447, 5499), (3807, 4979)]