20839808

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1$

素因数の和:104

約数の個数: 96

約数和(自身を含む): 48966120

約数和(自身を除く): 28126312

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 41, 44, 64, 76, 82, 88, 128, 152, 164, 176, 209, 304, 328, 352, 361, 418, 451, 608, 656, 704, 722, 779, 836, 902, 1216, 1312, 1408, 1444, 1558, 1672, 1804, 2432, 2624, 2888, 3116, 3344, 3608, 3971, 5248, 5776, 6232, 6688, 7216, 7942, 8569, 11552, 12464, 13376, 14432, 14801, 15884, 17138, 23104, 24928, 26752, 28864, 29602, 31768, 34276, 46208, 49856, 57728, 59204, 63536, 68552, 99712, 118408, 127072, 137104, 162811, 236816, 254144, 274208, 325622, 473632, 508288, 548416, 651244, 947264, 1096832, 1302488, 1894528, 2604976, 5209952, 10419904, 20839808]

約数ペア:

[(1, 20839808), (2, 10419904), (4, 5209952), (8, 2604976), (11, 1894528), (16, 1302488), (19, 1096832), (22, 947264), (32, 651244), (38, 548416), (41, 508288), (44, 473632), (64, 325622), (76, 274208), (82, 254144), (88, 236816), (128, 162811), (152, 137104), (164, 127072), (176, 118408), (209, 99712), (304, 68552), (328, 63536), (352, 59204), (361, 57728), (418, 49856), (451, 46208), (608, 34276), (656, 31768), (704, 29602), (722, 28864), (779, 26752), (836, 24928), (902, 23104), (1216, 17138), (1312, 15884), (1408, 14801), (1444, 14432), (1558, 13376), (1672, 12464), (1804, 11552), (2432, 8569), (2624, 7942), (2888, 7216), (3116, 6688), (3344, 6232), (3608, 5776), (3971, 5248)]