18993352

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 43856640

約数和(自身を除く): 24863288

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 71, 119, 136, 142, 238, 281, 284, 476, 497, 562, 568, 952, 994, 1124, 1207, 1967, 1988, 2248, 2414, 3934, 3976, 4777, 4828, 7868, 8449, 9554, 9656, 15736, 16898, 19108, 19951, 33439, 33796, 38216, 39902, 66878, 67592, 79804, 133756, 139657, 159608, 267512, 279314, 339167, 558628, 678334, 1117256, 1356668, 2374169, 2713336, 4748338, 9496676, 18993352]

約数ペア:

[(1, 18993352), (2, 9496676), (4, 4748338), (7, 2713336), (8, 2374169), (14, 1356668), (17, 1117256), (28, 678334), (34, 558628), (56, 339167), (68, 279314), (71, 267512), (119, 159608), (136, 139657), (142, 133756), (238, 79804), (281, 67592), (284, 66878), (476, 39902), (497, 38216), (562, 33796), (568, 33439), (952, 19951), (994, 19108), (1124, 16898), (1207, 15736), (1967, 9656), (1988, 9554), (2248, 8449), (2414, 7868), (3934, 4828), (3976, 4777)]