18916665

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2393}}^1$

素因数の和:2449

約数の個数: 32

約数和(自身を含む): 33094656

約数和(自身を除く): 14177991

約数列:

[1, 3, 5, 15, 17, 31, 51, 85, 93, 155, 255, 465, 527, 1581, 2393, 2635, 7179, 7905, 11965, 35895, 40681, 74183, 122043, 203405, 222549, 370915, 610215, 1112745, 1261111, 3783333, 6305555, 18916665]

約数ペア:

[(1, 18916665), (3, 6305555), (5, 3783333), (15, 1261111), (17, 1112745), (31, 610215), (51, 370915), (85, 222549), (93, 203405), (155, 122043), (255, 74183), (465, 40681), (527, 35895), (1581, 11965), (2393, 7905), (2635, 7179)]