20660661

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 36661248

約数和(自身を除く): 16000587

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 101, 119, 153, 191, 303, 357, 573, 707, 909, 1071, 1337, 1717, 1719, 2121, 3247, 4011, 5151, 6363, 9741, 12019, 12033, 15453, 19291, 22729, 29223, 36057, 57873, 68187, 108171, 135037, 173619, 204561, 327947, 405111, 983841, 1215333, 2295629, 2951523, 6886887, 20660661]

約数ペア:

[(1, 20660661), (3, 6886887), (7, 2951523), (9, 2295629), (17, 1215333), (21, 983841), (51, 405111), (63, 327947), (101, 204561), (119, 173619), (153, 135037), (191, 108171), (303, 68187), (357, 57873), (573, 36057), (707, 29223), (909, 22729), (1071, 19291), (1337, 15453), (1717, 12033), (1719, 12019), (2121, 9741), (3247, 6363), (4011, 5151)]