18318976

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 40055400

約数和(自身を除く): 21736424

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 101, 104, 109, 128, 202, 208, 218, 404, 416, 436, 808, 832, 872, 1313, 1417, 1616, 1664, 1744, 2626, 2834, 3232, 3488, 5252, 5668, 6464, 6976, 10504, 11009, 11336, 12928, 13952, 21008, 22018, 22672, 42016, 44036, 45344, 84032, 88072, 90688, 143117, 168064, 176144, 181376, 286234, 352288, 572468, 704576, 1144936, 1409152, 2289872, 4579744, 9159488, 18318976]

約数ペア:

[(1, 18318976), (2, 9159488), (4, 4579744), (8, 2289872), (13, 1409152), (16, 1144936), (26, 704576), (32, 572468), (52, 352288), (64, 286234), (101, 181376), (104, 176144), (109, 168064), (128, 143117), (202, 90688), (208, 88072), (218, 84032), (404, 45344), (416, 44036), (436, 42016), (808, 22672), (832, 22018), (872, 21008), (1313, 13952), (1417, 12928), (1616, 11336), (1664, 11009), (1744, 10504), (2626, 6976), (2834, 6464), (3232, 5668), (3488, 5252)]