21992336

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:351

約数の個数: 40

約数和(自身を含む): 43806720

約数和(自身を除く): 21814384

約数列:

[1, 2, 4, 8, 16, 79, 127, 137, 158, 254, 274, 316, 508, 548, 632, 1016, 1096, 1264, 2032, 2192, 10033, 10823, 17399, 20066, 21646, 34798, 40132, 43292, 69596, 80264, 86584, 139192, 160528, 173168, 278384, 1374521, 2749042, 5498084, 10996168, 21992336]

約数ペア:

[(1, 21992336), (2, 10996168), (4, 5498084), (8, 2749042), (16, 1374521), (79, 278384), (127, 173168), (137, 160528), (158, 139192), (254, 86584), (274, 80264), (316, 69596), (508, 43292), (548, 40132), (632, 34798), (1016, 21646), (1096, 20066), (1264, 17399), (2032, 10823), (2192, 10033)]