221365035

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{26881}}^1$

素因数の和:26956

約数の個数: 32

約数和(自身を含む): 400004160

約数和(自身を除く): 178639125

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 135, 183, 305, 549, 915, 1647, 2745, 8235, 26881, 80643, 134405, 241929, 403215, 725787, 1209645, 1639741, 3628935, 4919223, 8198705, 14757669, 24596115, 44273007, 73788345, 221365035]

約数ペア:

[(1, 221365035), (3, 73788345), (5, 44273007), (9, 24596115), (15, 14757669), (27, 8198705), (45, 4919223), (61, 3628935), (135, 1639741), (183, 1209645), (305, 725787), (549, 403215), (915, 241929), (1647, 134405), (2745, 80643), (8235, 26881)]