21712189751

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1\times {\mathrm{4157}}^1$

素因数の和:4583

約数の個数: 32

約数和(自身を含む): 26392988160

約数和(自身を除く): 4680798409

約数列:

[1, 7, 19, 133, 173, 227, 1211, 1589, 3287, 4157, 4313, 23009, 29099, 30191, 39271, 78983, 274897, 552881, 719161, 746149, 943639, 5034127, 5223043, 6605473, 13664059, 17929141, 95648413, 125503987, 163249547, 1142746829, 3101741393, 21712189751]

約数ペア:

[(1, 21712189751), (7, 3101741393), (19, 1142746829), (133, 163249547), (173, 125503987), (227, 95648413), (1211, 17929141), (1589, 13664059), (3287, 6605473), (4157, 5223043), (4313, 5034127), (23009, 943639), (29099, 746149), (30191, 719161), (39271, 552881), (78983, 274897)]