20687557227

素因数分解:

$3^1\times {\mathrm{17}}^3\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:405

約数の個数: 64

約数和(自身を含む): 30134016000

約数和(自身を除く): 9446458773

約数列:

[1, 3, 17, 51, 79, 109, 163, 237, 289, 327, 489, 867, 1343, 1853, 2771, 4029, 4913, 5559, 8313, 8611, 12877, 14739, 17767, 22831, 25833, 31501, 38631, 47107, 53301, 68493, 94503, 141321, 146387, 218909, 302039, 388127, 439161, 535517, 656727, 800819, 906117, 1164381, 1403593, 1606551, 2402457, 2488579, 3721453, 4210779, 5134663, 7465737, 11164359, 15403989, 23861081, 42305843, 63264701, 71583243, 87289271, 126917529, 189794103, 261867813, 405638377, 1216915131, 6895852409, 20687557227]

約数ペア:

[(1, 20687557227), (3, 6895852409), (17, 1216915131), (51, 405638377), (79, 261867813), (109, 189794103), (163, 126917529), (237, 87289271), (289, 71583243), (327, 63264701), (489, 42305843), (867, 23861081), (1343, 15403989), (1853, 11164359), (2771, 7465737), (4029, 5134663), (4913, 4210779), (5559, 3721453), (8313, 2488579), (8611, 2402457), (12877, 1606551), (14739, 1403593), (17767, 1164381), (22831, 906117), (25833, 800819), (31501, 656727), (38631, 535517), (47107, 439161), (53301, 388127), (68493, 302039), (94503, 218909), (141321, 146387)]