221488605

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{19927}}^1$

素因数の和:19970

約数の個数: 48

約数和(自身を含む): 435227520

約数和(自身を除く): 213738915

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 285, 585, 741, 855, 1235, 2223, 3705, 11115, 19927, 59781, 99635, 179343, 259051, 298905, 378613, 777153, 896715, 1135839, 1295255, 1893065, 2331459, 3407517, 3885765, 4921969, 5679195, 11657295, 14765907, 17037585, 24609845, 44297721, 73829535, 221488605]

約数ペア:

[(1, 221488605), (3, 73829535), (5, 44297721), (9, 24609845), (13, 17037585), (15, 14765907), (19, 11657295), (39, 5679195), (45, 4921969), (57, 3885765), (65, 3407517), (95, 2331459), (117, 1893065), (171, 1295255), (195, 1135839), (247, 896715), (285, 777153), (585, 378613), (741, 298905), (855, 259051), (1235, 179343), (2223, 99635), (3705, 59781), (11115, 19927)]