20955931011

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{461}}^1\times {\mathrm{18917}}^1$

素因数の和:19476

約数の個数: 32

約数和(自身を含む): 31464417600

約数和(自身を除く): 10508486589

約数列:

[1, 3, 9, 27, 89, 267, 461, 801, 1383, 2403, 4149, 12447, 18917, 41029, 56751, 123087, 170253, 369261, 510759, 1107783, 1683613, 5050839, 8720737, 15152517, 26162211, 45457551, 78486633, 235459899, 776145593, 2328436779, 6985310337, 20955931011]

約数ペア:

[(1, 20955931011), (3, 6985310337), (9, 2328436779), (27, 776145593), (89, 235459899), (267, 78486633), (461, 45457551), (801, 26162211), (1383, 15152517), (2403, 8720737), (4149, 5050839), (12447, 1683613), (18917, 1107783), (41029, 510759), (56751, 369261), (123087, 170253)]