222345

素因数分解:

$3^6\times 5^1\times {\mathrm{61}}^1$

素因数の和:84

約数の個数: 28

約数和(自身を含む): 406596

約数和(自身を除く): 184251

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 183, 243, 305, 405, 549, 729, 915, 1215, 1647, 2745, 3645, 4941, 8235, 14823, 24705, 44469, 74115, 222345]

約数ペア:

[(1, 222345), (3, 74115), (5, 44469), (9, 24705), (15, 14823), (27, 8235), (45, 4941), (61, 3645), (81, 2745), (135, 1647), (183, 1215), (243, 915), (305, 729), (405, 549)]