18479955

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{977}}^1$

素因数の和:1095

約数の個数: 32

約数和(自身を含む): 32203584

約数和(自身を除く): 13723629

約数列:

[1, 3, 5, 13, 15, 39, 65, 97, 195, 291, 485, 977, 1261, 1455, 2931, 3783, 4885, 6305, 12701, 14655, 18915, 38103, 63505, 94769, 190515, 284307, 473845, 1231997, 1421535, 3695991, 6159985, 18479955]

約数ペア:

[(1, 18479955), (3, 6159985), (5, 3695991), (13, 1421535), (15, 1231997), (39, 473845), (65, 284307), (97, 190515), (195, 94769), (291, 63505), (485, 38103), (977, 18915), (1261, 14655), (1455, 12701), (2931, 6305), (3783, 4885)]