20178385941

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{419}}^1\times {\mathrm{15391}}^1$

素因数の和:15969

約数の個数: 32

約数和(自身を含む): 31030272000

約数和(自身を除く): 10851886059

約数列:

[1, 3, 7, 21, 149, 419, 447, 1043, 1257, 2933, 3129, 8799, 15391, 46173, 62431, 107737, 187293, 323211, 437017, 1311051, 2293259, 6448829, 6879777, 16052813, 19346487, 45141803, 48158439, 135425409, 960875521, 2882626563, 6726128647, 20178385941]

約数ペア:

[(1, 20178385941), (3, 6726128647), (7, 2882626563), (21, 960875521), (149, 135425409), (419, 48158439), (447, 45141803), (1043, 19346487), (1257, 16052813), (2933, 6879777), (3129, 6448829), (8799, 2293259), (15391, 1311051), (46173, 437017), (62431, 323211), (107737, 187293)]