18962216

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^2$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 45282510

約数和(自身を除く): 26320294

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 61, 91, 98, 104, 122, 182, 196, 244, 364, 392, 427, 488, 637, 728, 793, 854, 1274, 1586, 1708, 2548, 2989, 3172, 3416, 3721, 5096, 5551, 5978, 6344, 7442, 11102, 11956, 14884, 22204, 23912, 26047, 29768, 38857, 44408, 48373, 52094, 77714, 96746, 104188, 155428, 182329, 193492, 208376, 310856, 338611, 364658, 386984, 677222, 729316, 1354444, 1458632, 2370277, 2708888, 4740554, 9481108, 18962216]

約数ペア:

[(1, 18962216), (2, 9481108), (4, 4740554), (7, 2708888), (8, 2370277), (13, 1458632), (14, 1354444), (26, 729316), (28, 677222), (49, 386984), (52, 364658), (56, 338611), (61, 310856), (91, 208376), (98, 193492), (104, 182329), (122, 155428), (182, 104188), (196, 96746), (244, 77714), (364, 52094), (392, 48373), (427, 44408), (488, 38857), (637, 29768), (728, 26047), (793, 23912), (854, 22204), (1274, 14884), (1586, 11956), (1708, 11102), (2548, 7442), (2989, 6344), (3172, 5978), (3416, 5551), (3721, 5096)]