18864352

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:491

約数の個数: 48

約数和(自身を含む): 40409712

約数和(自身を除く): 21545360

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 137, 208, 274, 331, 416, 548, 662, 1096, 1324, 1781, 2192, 2648, 3562, 4303, 4384, 5296, 7124, 8606, 10592, 14248, 17212, 28496, 34424, 45347, 56992, 68848, 90694, 137696, 181388, 362776, 589511, 725552, 1179022, 1451104, 2358044, 4716088, 9432176, 18864352]

約数ペア:

[(1, 18864352), (2, 9432176), (4, 4716088), (8, 2358044), (13, 1451104), (16, 1179022), (26, 725552), (32, 589511), (52, 362776), (104, 181388), (137, 137696), (208, 90694), (274, 68848), (331, 56992), (416, 45347), (548, 34424), (662, 28496), (1096, 17212), (1324, 14248), (1781, 10592), (2192, 8606), (2648, 7124), (3562, 5296), (4303, 4384)]