21356978518

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{383}}^1\times {\mathrm{15923}}^1$

素因数の和:16428

約数の個数: 32

約数和(自身を含む): 34340806656

約数和(自身を除く): 12983828138

約数列:

[1, 2, 17, 34, 103, 206, 383, 766, 1751, 3502, 6511, 13022, 15923, 31846, 39449, 78898, 270691, 541382, 670633, 1341266, 1640069, 3280138, 6098509, 12197018, 27881173, 55762346, 103674653, 207349306, 628146427, 1256292854, 10678489259, 21356978518]

約数ペア:

[(1, 21356978518), (2, 10678489259), (17, 1256292854), (34, 628146427), (103, 207349306), (206, 103674653), (383, 55762346), (766, 27881173), (1751, 12197018), (3502, 6098509), (6511, 3280138), (13022, 1640069), (15923, 1341266), (31846, 670633), (39449, 541382), (78898, 270691)]