18780322

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{251}}^1$

素因数の和:462

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 13878878

約数列:

[1, 2, 11, 19, 22, 38, 179, 209, 251, 358, 418, 502, 1969, 2761, 3401, 3938, 4769, 5522, 6802, 9538, 37411, 44929, 52459, 74822, 89858, 104918, 494219, 853651, 988438, 1707302, 9390161, 18780322]

約数ペア:

[(1, 18780322), (2, 9390161), (11, 1707302), (19, 988438), (22, 853651), (38, 494219), (179, 104918), (209, 89858), (251, 74822), (358, 52459), (418, 44929), (502, 37411), (1969, 9538), (2761, 6802), (3401, 5522), (3938, 4769)]