18318872

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:336

約数の個数: 64

約数和(自身を含む): 41126400

約数和(自身を除く): 22807528

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 67, 88, 104, 134, 143, 239, 268, 286, 478, 536, 572, 737, 871, 956, 1144, 1474, 1742, 1912, 2629, 2948, 3107, 3484, 5258, 5896, 6214, 6968, 9581, 10516, 12428, 16013, 19162, 21032, 24856, 32026, 34177, 38324, 64052, 68354, 76648, 128104, 136708, 176143, 208169, 273416, 352286, 416338, 704572, 832676, 1409144, 1665352, 2289859, 4579718, 9159436, 18318872]

約数ペア:

[(1, 18318872), (2, 9159436), (4, 4579718), (8, 2289859), (11, 1665352), (13, 1409144), (22, 832676), (26, 704572), (44, 416338), (52, 352286), (67, 273416), (88, 208169), (104, 176143), (134, 136708), (143, 128104), (239, 76648), (268, 68354), (286, 64052), (478, 38324), (536, 34177), (572, 32026), (737, 24856), (871, 21032), (956, 19162), (1144, 16013), (1474, 12428), (1742, 10516), (1912, 9581), (2629, 6968), (2948, 6214), (3107, 5896), (3484, 5258)]