21769592

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{479}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 26614408

約数列:

[1, 2, 4, 8, 13, 19, 23, 26, 38, 46, 52, 76, 92, 104, 152, 184, 247, 299, 437, 479, 494, 598, 874, 958, 988, 1196, 1748, 1916, 1976, 2392, 3496, 3832, 5681, 6227, 9101, 11017, 11362, 12454, 18202, 22034, 22724, 24908, 36404, 44068, 45448, 49816, 72808, 88136, 118313, 143221, 209323, 236626, 286442, 418646, 473252, 572884, 837292, 946504, 1145768, 1674584, 2721199, 5442398, 10884796, 21769592]

約数ペア:

[(1, 21769592), (2, 10884796), (4, 5442398), (8, 2721199), (13, 1674584), (19, 1145768), (23, 946504), (26, 837292), (38, 572884), (46, 473252), (52, 418646), (76, 286442), (92, 236626), (104, 209323), (152, 143221), (184, 118313), (247, 88136), (299, 72808), (437, 49816), (479, 45448), (494, 44068), (598, 36404), (874, 24908), (958, 22724), (988, 22034), (1196, 18202), (1748, 12454), (1916, 11362), (1976, 11017), (2392, 9101), (3496, 6227), (3832, 5681)]