17388965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 23784192

約数和(自身を除く): 6395227

約数列:

[1, 5, 11, 55, 61, 71, 73, 305, 355, 365, 671, 781, 803, 3355, 3905, 4015, 4331, 4453, 5183, 21655, 22265, 25915, 47641, 48983, 57013, 238205, 244915, 285065, 316163, 1580815, 3477793, 17388965]

約数ペア:

[(1, 17388965), (5, 3477793), (11, 1580815), (55, 316163), (61, 285065), (71, 244915), (73, 238205), (305, 57013), (355, 48983), (365, 47641), (671, 25915), (781, 22265), (803, 21655), (3355, 5183), (3905, 4453), (4015, 4331)]