21001961617

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{547}}^1\times {\mathrm{14549}}^1$

素因数の和:15145

約数の個数: 32

約数和(自身を含む): 26790624000

約数和(自身を除く): 5788662383

約数列:

[1, 7, 13, 29, 91, 203, 377, 547, 2639, 3829, 7111, 14549, 15863, 49777, 101843, 111041, 189137, 206219, 421921, 1323959, 1443533, 2953447, 5484973, 7958303, 38394811, 55708121, 103457939, 230790787, 724205573, 1615535509, 3000280231, 21001961617]

約数ペア:

[(1, 21001961617), (7, 3000280231), (13, 1615535509), (29, 724205573), (91, 230790787), (203, 103457939), (377, 55708121), (547, 38394811), (2639, 7958303), (3829, 5484973), (7111, 2953447), (14549, 1443533), (15863, 1323959), (49777, 421921), (101843, 206219), (111041, 189137)]