21000921612

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{81131}}^1$

素因数の和:81239

約数の個数: 96

約数和(自身を含む): 55938242304

約数和(自身を除く): 34937320692

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 37, 44, 53, 66, 74, 106, 111, 132, 148, 159, 212, 222, 318, 407, 444, 583, 636, 814, 1166, 1221, 1628, 1749, 1961, 2332, 2442, 3498, 3922, 4884, 5883, 6996, 7844, 11766, 21571, 23532, 43142, 64713, 81131, 86284, 129426, 162262, 243393, 258852, 324524, 486786, 892441, 973572, 1784882, 2677323, 3001847, 3569764, 4299943, 5354646, 6003694, 8599886, 9005541, 10709292, 12007388, 12899829, 17199772, 18011082, 25799658, 33020317, 36022164, 47299373, 51599316, 66040634, 94598746, 99060951, 132081268, 141898119, 159097891, 189197492, 198121902, 283796238, 318195782, 396243804, 477293673, 567592476, 636391564, 954587346, 1750076801, 1909174692, 3500153602, 5250230403, 7000307204, 10500460806, 21000921612]

約数ペア:

[(1, 21000921612), (2, 10500460806), (3, 7000307204), (4, 5250230403), (6, 3500153602), (11, 1909174692), (12, 1750076801), (22, 954587346), (33, 636391564), (37, 567592476), (44, 477293673), (53, 396243804), (66, 318195782), (74, 283796238), (106, 198121902), (111, 189197492), (132, 159097891), (148, 141898119), (159, 132081268), (212, 99060951), (222, 94598746), (318, 66040634), (407, 51599316), (444, 47299373), (583, 36022164), (636, 33020317), (814, 25799658), (1166, 18011082), (1221, 17199772), (1628, 12899829), (1749, 12007388), (1961, 10709292), (2332, 9005541), (2442, 8599886), (3498, 6003694), (3922, 5354646), (4884, 4299943), (5883, 3569764), (6996, 3001847), (7844, 2677323), (11766, 1784882), (21571, 973572), (23532, 892441), (43142, 486786), (64713, 324524), (81131, 258852), (86284, 243393), (129426, 162262)]