626319939

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1\times {\mathrm{1487}}^1$

素因数の和:2175

約数の個数: 32

約数和(自身を含む): 987365376

約数和(自身を除く): 361045437

約数列:

[1, 3, 7, 21, 31, 93, 217, 647, 651, 1487, 1941, 4461, 4529, 10409, 13587, 20057, 31227, 46097, 60171, 138291, 140399, 322679, 421197, 962089, 968037, 2886267, 6734623, 20203869, 29824759, 89474277, 208773313, 626319939]

約数ペア:

[(1, 626319939), (3, 208773313), (7, 89474277), (21, 29824759), (31, 20203869), (93, 6734623), (217, 2886267), (647, 968037), (651, 962089), (1487, 421197), (1941, 322679), (4461, 140399), (4529, 138291), (10409, 60171), (13587, 46097), (20057, 31227)]