1213478253

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{16231}}^1$

素因数の和:16327

約数の個数: 40

約数和(自身を含む): 1979784576

約数和(自身を除く): 766306323

約数列:

[1, 3, 9, 13, 27, 39, 71, 81, 117, 213, 351, 639, 923, 1053, 1917, 2769, 5751, 8307, 16231, 24921, 48693, 74763, 146079, 211003, 438237, 633009, 1152401, 1314711, 1899027, 3457203, 5697081, 10371609, 14981213, 17091243, 31114827, 44943639, 93344481, 134830917, 404492751, 1213478253]

約数ペア:

[(1, 1213478253), (3, 404492751), (9, 134830917), (13, 93344481), (27, 44943639), (39, 31114827), (71, 17091243), (81, 14981213), (117, 10371609), (213, 5697081), (351, 3457203), (639, 1899027), (923, 1314711), (1053, 1152401), (1917, 633009), (2769, 438237), (5751, 211003), (8307, 146079), (16231, 74763), (24921, 48693)]