197813889

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:247

約数の個数: 96

約数和(自身を含む): 371314944

約数和(自身を除く): 173501055

約数列:

[1, 3, 7, 9, 13, 21, 39, 41, 43, 63, 91, 117, 123, 129, 137, 273, 287, 301, 369, 387, 411, 533, 559, 819, 861, 903, 959, 1233, 1599, 1677, 1763, 1781, 2583, 2709, 2877, 3731, 3913, 4797, 5031, 5289, 5343, 5617, 5891, 8631, 11193, 11739, 12341, 12467, 15867, 16029, 16851, 17673, 22919, 33579, 35217, 37023, 37401, 39319, 41237, 50553, 53019, 68757, 73021, 76583, 111069, 112203, 117957, 123711, 160433, 206271, 219063, 229749, 241531, 353871, 371133, 481299, 511147, 536081, 657189, 689247, 724593, 1443897, 1533441, 1608243, 1690717, 2173779, 3139903, 4600323, 4824729, 5072151, 9419709, 15216453, 21979321, 28259127, 65937963, 197813889]

約数ペア:

[(1, 197813889), (3, 65937963), (7, 28259127), (9, 21979321), (13, 15216453), (21, 9419709), (39, 5072151), (41, 4824729), (43, 4600323), (63, 3139903), (91, 2173779), (117, 1690717), (123, 1608243), (129, 1533441), (137, 1443897), (273, 724593), (287, 689247), (301, 657189), (369, 536081), (387, 511147), (411, 481299), (533, 371133), (559, 353871), (819, 241531), (861, 229749), (903, 219063), (959, 206271), (1233, 160433), (1599, 123711), (1677, 117957), (1763, 112203), (1781, 111069), (2583, 76583), (2709, 73021), (2877, 68757), (3731, 53019), (3913, 50553), (4797, 41237), (5031, 39319), (5289, 37401), (5343, 37023), (5617, 35217), (5891, 33579), (8631, 22919), (11193, 17673), (11739, 16851), (12341, 16029), (12467, 15867)]