21398676

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{599}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 54096000

約数和(自身を除く): 32697324

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 229, 458, 599, 687, 916, 1198, 1374, 1797, 2396, 2748, 2977, 3594, 5954, 7188, 7787, 8931, 11908, 15574, 17862, 23361, 31148, 35724, 46722, 93444, 137171, 274342, 411513, 548684, 823026, 1646052, 1783223, 3566446, 5349669, 7132892, 10699338, 21398676]

約数ペア:

[(1, 21398676), (2, 10699338), (3, 7132892), (4, 5349669), (6, 3566446), (12, 1783223), (13, 1646052), (26, 823026), (39, 548684), (52, 411513), (78, 274342), (156, 137171), (229, 93444), (458, 46722), (599, 35724), (687, 31148), (916, 23361), (1198, 17862), (1374, 15574), (1797, 11908), (2396, 8931), (2748, 7787), (2977, 7188), (3594, 5954)]