21264888957

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{18131}}^1$

素因数の和:18254

約数の個数: 64

約数和(自身を含む): 33995324160

約数和(自身を除く): 12730435203

約数列:

[1, 3, 13, 17, 29, 39, 51, 61, 87, 183, 221, 377, 493, 663, 793, 1037, 1131, 1479, 1769, 2379, 3111, 5307, 6409, 13481, 18131, 19227, 22997, 30073, 40443, 54393, 68991, 90219, 235703, 308227, 390949, 525799, 707109, 924681, 1105991, 1172847, 1577397, 3317973, 4006951, 6835387, 8938583, 12020853, 14377883, 18801847, 20506161, 26815749, 32073739, 43133649, 56405541, 96221217, 116201579, 244424011, 348604737, 416958607, 545253563, 733272033, 1250875821, 1635760689, 7088296319, 21264888957]

約数ペア:

[(1, 21264888957), (3, 7088296319), (13, 1635760689), (17, 1250875821), (29, 733272033), (39, 545253563), (51, 416958607), (61, 348604737), (87, 244424011), (183, 116201579), (221, 96221217), (377, 56405541), (493, 43133649), (663, 32073739), (793, 26815749), (1037, 20506161), (1131, 18801847), (1479, 14377883), (1769, 12020853), (2379, 8938583), (3111, 6835387), (5307, 4006951), (6409, 3317973), (13481, 1577397), (18131, 1172847), (19227, 1105991), (22997, 924681), (30073, 707109), (40443, 525799), (54393, 390949), (68991, 308227), (90219, 235703)]