20798388

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2339}}^1$

素因数の和:2381

約数の個数: 72

約数和(自身を含む): 59623200

約数和(自身を除く): 38824812

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2339, 2964, 4446, 4678, 7017, 8892, 9356, 14034, 21051, 28068, 30407, 42102, 44441, 60814, 84204, 88882, 91221, 121628, 133323, 177764, 182442, 266646, 273663, 364884, 399969, 533292, 547326, 577733, 799938, 1094652, 1155466, 1599876, 1733199, 2310932, 3466398, 5199597, 6932796, 10399194, 20798388]

約数ペア:

[(1, 20798388), (2, 10399194), (3, 6932796), (4, 5199597), (6, 3466398), (9, 2310932), (12, 1733199), (13, 1599876), (18, 1155466), (19, 1094652), (26, 799938), (36, 577733), (38, 547326), (39, 533292), (52, 399969), (57, 364884), (76, 273663), (78, 266646), (114, 182442), (117, 177764), (156, 133323), (171, 121628), (228, 91221), (234, 88882), (247, 84204), (342, 60814), (468, 44441), (494, 42102), (684, 30407), (741, 28068), (988, 21051), (1482, 14034), (2223, 9356), (2339, 8892), (2964, 7017), (4446, 4678)]