21561036255

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{109717}}^1$

素因数の和:110136

約数の個数: 48

約数和(自身を含む): 40873027104

約数和(自身を除く): 19311990849

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 397, 495, 1191, 1985, 3573, 4367, 5955, 13101, 17865, 21835, 39303, 65505, 109717, 196515, 329151, 548585, 987453, 1206887, 1645755, 3620661, 4937265, 6034435, 10861983, 18103305, 43557649, 54309915, 130672947, 217788245, 392018841, 479134139, 653364735, 1437402417, 1960094205, 2395670695, 4312207251, 7187012085, 21561036255]

約数ペア:

[(1, 21561036255), (3, 7187012085), (5, 4312207251), (9, 2395670695), (11, 1960094205), (15, 1437402417), (33, 653364735), (45, 479134139), (55, 392018841), (99, 217788245), (165, 130672947), (397, 54309915), (495, 43557649), (1191, 18103305), (1985, 10861983), (3573, 6034435), (4367, 4937265), (5955, 3620661), (13101, 1645755), (17865, 1206887), (21835, 987453), (39303, 548585), (65505, 329151), (109717, 196515)]