216543645

素因数分解:

$3^3\times 5^1\times {\mathrm{823}}^1\times {\mathrm{1949}}^1$

素因数の和:2786

約数の個数: 32

約数和(自身を含む): 385632000

約数和(自身を除く): 169088355

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 823, 1949, 2469, 4115, 5847, 7407, 9745, 12345, 17541, 22221, 29235, 37035, 52623, 87705, 111105, 263115, 1604027, 4812081, 8020135, 14436243, 24060405, 43308729, 72181215, 216543645]

約数ペア:

[(1, 216543645), (3, 72181215), (5, 43308729), (9, 24060405), (15, 14436243), (27, 8020135), (45, 4812081), (135, 1604027), (823, 263115), (1949, 111105), (2469, 87705), (4115, 52623), (5847, 37035), (7407, 29235), (9745, 22221), (12345, 17541)]