18828117

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{269}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 34369920

約数和(自身を除く): 15541803

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 101, 231, 269, 303, 693, 707, 807, 909, 1111, 1883, 2121, 2421, 2959, 3333, 5649, 6363, 7777, 8877, 9999, 16947, 20713, 23331, 26631, 27169, 62139, 69993, 81507, 186417, 190183, 244521, 298859, 570549, 896577, 1711647, 2092013, 2689731, 6276039, 18828117]

約数ペア:

[(1, 18828117), (3, 6276039), (7, 2689731), (9, 2092013), (11, 1711647), (21, 896577), (33, 570549), (63, 298859), (77, 244521), (99, 190183), (101, 186417), (231, 81507), (269, 69993), (303, 62139), (693, 27169), (707, 26631), (807, 23331), (909, 20713), (1111, 16947), (1883, 9999), (2121, 8877), (2421, 7777), (2959, 6363), (3333, 5649)]