17912223

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 30950400

約数和(自身を除く): 13038177

約数列:

[1, 3, 7, 9, 21, 59, 61, 63, 79, 177, 183, 237, 413, 427, 531, 549, 553, 711, 1239, 1281, 1659, 3599, 3717, 3843, 4661, 4819, 4977, 10797, 13983, 14457, 25193, 32391, 32627, 33733, 41949, 43371, 75579, 97881, 101199, 226737, 284321, 293643, 303597, 852963, 1990247, 2558889, 5970741, 17912223]

約数ペア:

[(1, 17912223), (3, 5970741), (7, 2558889), (9, 1990247), (21, 852963), (59, 303597), (61, 293643), (63, 284321), (79, 226737), (177, 101199), (183, 97881), (237, 75579), (413, 43371), (427, 41949), (531, 33733), (549, 32627), (553, 32391), (711, 25193), (1239, 14457), (1281, 13983), (1659, 10797), (3599, 4977), (3717, 4819), (3843, 4661)]