20658876

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:108

約数の個数: 144

約数和(自身を含む): 62716416

約数和(自身を除く): 42057540

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 23, 28, 34, 37, 42, 46, 51, 68, 69, 74, 84, 92, 102, 111, 119, 138, 148, 161, 204, 222, 238, 259, 276, 289, 322, 357, 391, 444, 476, 483, 518, 578, 629, 644, 714, 777, 782, 851, 867, 966, 1036, 1156, 1173, 1258, 1428, 1554, 1564, 1702, 1734, 1887, 1932, 2023, 2346, 2516, 2553, 2737, 3108, 3404, 3468, 3774, 4046, 4403, 4692, 5106, 5474, 5957, 6069, 6647, 7548, 8092, 8211, 8806, 10212, 10693, 10948, 11914, 12138, 13209, 13294, 14467, 16422, 17612, 17871, 19941, 21386, 23828, 24276, 26418, 26588, 28934, 32079, 32844, 35742, 39882, 42772, 43401, 46529, 52836, 57868, 64158, 71484, 74851, 79764, 86802, 93058, 101269, 128316, 139587, 149702, 173604, 186116, 202538, 224553, 245939, 279174, 299404, 303807, 405076, 449106, 491878, 558348, 607614, 737817, 898212, 983756, 1215228, 1475634, 1721573, 2951268, 3443146, 5164719, 6886292, 10329438, 20658876]

約数ペア:

[(1, 20658876), (2, 10329438), (3, 6886292), (4, 5164719), (6, 3443146), (7, 2951268), (12, 1721573), (14, 1475634), (17, 1215228), (21, 983756), (23, 898212), (28, 737817), (34, 607614), (37, 558348), (42, 491878), (46, 449106), (51, 405076), (68, 303807), (69, 299404), (74, 279174), (84, 245939), (92, 224553), (102, 202538), (111, 186116), (119, 173604), (138, 149702), (148, 139587), (161, 128316), (204, 101269), (222, 93058), (238, 86802), (259, 79764), (276, 74851), (289, 71484), (322, 64158), (357, 57868), (391, 52836), (444, 46529), (476, 43401), (483, 42772), (518, 39882), (578, 35742), (629, 32844), (644, 32079), (714, 28934), (777, 26588), (782, 26418), (851, 24276), (867, 23828), (966, 21386), (1036, 19941), (1156, 17871), (1173, 17612), (1258, 16422), (1428, 14467), (1554, 13294), (1564, 13209), (1702, 12138), (1734, 11914), (1887, 10948), (1932, 10693), (2023, 10212), (2346, 8806), (2516, 8211), (2553, 8092), (2737, 7548), (3108, 6647), (3404, 6069), (3468, 5957), (3774, 5474), (4046, 5106), (4403, 4692)]