90121731

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{787}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 150917760

約数和(自身を除く): 60796029

約数列:

[1, 3, 7, 19, 21, 41, 49, 57, 123, 133, 147, 287, 399, 779, 787, 861, 931, 2009, 2337, 2361, 2793, 5453, 5509, 6027, 14953, 16359, 16527, 32267, 38171, 38563, 44859, 96801, 104671, 114513, 115689, 225869, 314013, 613073, 677607, 732697, 1581083, 1839219, 2198091, 4291511, 4743249, 12874533, 30040577, 90121731]

約数ペア:

[(1, 90121731), (3, 30040577), (7, 12874533), (19, 4743249), (21, 4291511), (41, 2198091), (49, 1839219), (57, 1581083), (123, 732697), (133, 677607), (147, 613073), (287, 314013), (399, 225869), (779, 115689), (787, 114513), (861, 104671), (931, 96801), (2009, 44859), (2337, 38563), (2361, 38171), (2793, 32267), (5453, 16527), (5509, 16359), (6027, 14953)]