21975759

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{457}}^1$

素因数の和:616

約数の個数: 32

約数和(自身を含む): 35394240

約数和(自身を除く): 13418481

約数列:

[1, 3, 9, 13, 27, 39, 117, 137, 351, 411, 457, 1233, 1371, 1781, 3699, 4113, 5343, 5941, 12339, 16029, 17823, 48087, 53469, 62609, 160407, 187827, 563481, 813917, 1690443, 2441751, 7325253, 21975759]

約数ペア:

[(1, 21975759), (3, 7325253), (9, 2441751), (13, 1690443), (27, 813917), (39, 563481), (117, 187827), (137, 160407), (351, 62609), (411, 53469), (457, 48087), (1233, 17823), (1371, 16029), (1781, 12339), (3699, 5941), (4113, 5343)]