21858855

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3727}}^1$

素因数の和:3775

約数の個数: 32

約数和(自身を含む): 38651904

約数和(自身を除く): 16793049

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 3727, 5865, 11181, 18635, 55905, 63359, 85721, 190077, 257163, 316795, 428605, 950385, 1285815, 1457257, 4371771, 7286285, 21858855]

約数ペア:

[(1, 21858855), (3, 7286285), (5, 4371771), (15, 1457257), (17, 1285815), (23, 950385), (51, 428605), (69, 316795), (85, 257163), (115, 190077), (255, 85721), (345, 63359), (391, 55905), (1173, 18635), (1955, 11181), (3727, 5865)]