21702018

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{12097}}^1$

素因数の和:12138

約数の個数: 32

約数和(自身を含む): 48779136

約数和(自身を除く): 27077118

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 299, 598, 897, 1794, 12097, 24194, 36291, 72582, 157261, 278231, 314522, 471783, 556462, 834693, 943566, 1669386, 3617003, 7234006, 10851009, 21702018]

約数ペア:

[(1, 21702018), (2, 10851009), (3, 7234006), (6, 3617003), (13, 1669386), (23, 943566), (26, 834693), (39, 556462), (46, 471783), (69, 314522), (78, 278231), (138, 157261), (299, 72582), (598, 36291), (897, 24194), (1794, 12097)]