21045654

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:242

約数の個数: 96

約数和(自身を含む): 56160000

約数和(自身を除く): 35114346

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 59, 63, 114, 118, 126, 133, 149, 171, 177, 266, 298, 342, 354, 399, 413, 447, 531, 798, 826, 894, 1043, 1062, 1121, 1197, 1239, 1341, 2086, 2242, 2394, 2478, 2682, 2831, 3129, 3363, 3717, 5662, 6258, 6726, 7434, 7847, 8493, 8791, 9387, 10089, 15694, 16986, 17582, 18774, 19817, 20178, 23541, 25479, 26373, 39634, 47082, 50958, 52746, 59451, 61537, 70623, 79119, 118902, 123074, 141246, 158238, 167029, 178353, 184611, 334058, 356706, 369222, 501087, 553833, 1002174, 1107666, 1169203, 1503261, 2338406, 3006522, 3507609, 7015218, 10522827, 21045654]

約数ペア:

[(1, 21045654), (2, 10522827), (3, 7015218), (6, 3507609), (7, 3006522), (9, 2338406), (14, 1503261), (18, 1169203), (19, 1107666), (21, 1002174), (38, 553833), (42, 501087), (57, 369222), (59, 356706), (63, 334058), (114, 184611), (118, 178353), (126, 167029), (133, 158238), (149, 141246), (171, 123074), (177, 118902), (266, 79119), (298, 70623), (342, 61537), (354, 59451), (399, 52746), (413, 50958), (447, 47082), (531, 39634), (798, 26373), (826, 25479), (894, 23541), (1043, 20178), (1062, 19817), (1121, 18774), (1197, 17582), (1239, 16986), (1341, 15694), (2086, 10089), (2242, 9387), (2394, 8791), (2478, 8493), (2682, 7847), (2831, 7434), (3129, 6726), (3363, 6258), (3717, 5662)]