21626955

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{967}}^1$

素因数の和:1056

約数の個数: 48

約数和(自身を含む): 43490304

約数和(自身を除く): 21863349

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 105, 213, 315, 355, 497, 639, 967, 1065, 1491, 2485, 2901, 3195, 4473, 4835, 6769, 7455, 8703, 14505, 20307, 22365, 33845, 43515, 60921, 68657, 101535, 205971, 304605, 343285, 480599, 617913, 1029855, 1441797, 2402995, 3089565, 4325391, 7208985, 21626955]

約数ペア:

[(1, 21626955), (3, 7208985), (5, 4325391), (7, 3089565), (9, 2402995), (15, 1441797), (21, 1029855), (35, 617913), (45, 480599), (63, 343285), (71, 304605), (105, 205971), (213, 101535), (315, 68657), (355, 60921), (497, 43515), (639, 33845), (967, 22365), (1065, 20307), (1491, 14505), (2485, 8703), (2901, 7455), (3195, 6769), (4473, 4835)]