1221705

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1597}}^1$

素因数の和:1625

約数の個数: 24

約数和(自身を含む): 2243592

約数和(自身を除く): 1021887

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 1597, 4791, 7985, 14373, 23955, 27149, 71865, 81447, 135745, 244341, 407235, 1221705]

約数ペア:

[(1, 1221705), (3, 407235), (5, 244341), (9, 135745), (15, 81447), (17, 71865), (45, 27149), (51, 23955), (85, 14373), (153, 7985), (255, 4791), (765, 1597)]