21025274127

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{613}}^1\times {\mathrm{4703}}^1$

素因数の和:5360

約数の個数: 64

約数和(自身を含む): 34936344576

約数和(自身を除く): 13911070449

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 613, 663, 1839, 2431, 4703, 6743, 7293, 7969, 10421, 14109, 20229, 23907, 31263, 51733, 61139, 79951, 87659, 114631, 135473, 155199, 183417, 239853, 262977, 343893, 406419, 672529, 879461, 1039363, 1490203, 2017587, 2638383, 2882939, 3118089, 4470609, 8648817, 11432993, 31712329, 34298979, 37478207, 49009963, 95136987, 112434621, 147029889, 412260277, 539109593, 637129519, 1236780831, 1617328779, 1911388557, 7008424709, 21025274127]

約数ペア:

[(1, 21025274127), (3, 7008424709), (11, 1911388557), (13, 1617328779), (17, 1236780831), (33, 637129519), (39, 539109593), (51, 412260277), (143, 147029889), (187, 112434621), (221, 95136987), (429, 49009963), (561, 37478207), (613, 34298979), (663, 31712329), (1839, 11432993), (2431, 8648817), (4703, 4470609), (6743, 3118089), (7293, 2882939), (7969, 2638383), (10421, 2017587), (14109, 1490203), (20229, 1039363), (23907, 879461), (31263, 672529), (51733, 406419), (61139, 343893), (79951, 262977), (87659, 239853), (114631, 183417), (135473, 155199)]