21115691091

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{31033}}^1$

素因数の和:31161

約数の個数: 64

約数和(自身を含む): 35751168000

約数和(自身を除く): 14635476909

約数列:

[1, 3, 9, 11, 27, 29, 33, 79, 87, 99, 237, 261, 297, 319, 711, 783, 869, 957, 2133, 2291, 2607, 2871, 6873, 7821, 8613, 20619, 23463, 25201, 31033, 61857, 75603, 93099, 226809, 279297, 341363, 680427, 837891, 899957, 1024089, 2451607, 2699871, 3072267, 7354821, 8099613, 9216801, 9899527, 22064463, 24298839, 26967677, 29698581, 66193389, 71096603, 80903031, 89095743, 213289809, 242709093, 267287229, 639869427, 728127279, 782062633, 1919608281, 2346187899, 7038563697, 21115691091]

約数ペア:

[(1, 21115691091), (3, 7038563697), (9, 2346187899), (11, 1919608281), (27, 782062633), (29, 728127279), (33, 639869427), (79, 267287229), (87, 242709093), (99, 213289809), (237, 89095743), (261, 80903031), (297, 71096603), (319, 66193389), (711, 29698581), (783, 26967677), (869, 24298839), (957, 22064463), (2133, 9899527), (2291, 9216801), (2607, 8099613), (2871, 7354821), (6873, 3072267), (7821, 2699871), (8613, 2451607), (20619, 1024089), (23463, 899957), (25201, 837891), (31033, 680427), (61857, 341363), (75603, 279297), (93099, 226809)]