21927152

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{389}}^1$

素因数の和:681

約数の個数: 40

約数和(自身を含む): 46038720

約数和(自身を除く): 24111568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 271, 389, 542, 778, 1084, 1556, 2168, 3112, 3523, 4336, 5057, 6224, 7046, 10114, 14092, 20228, 28184, 40456, 56368, 80912, 105419, 210838, 421676, 843352, 1370447, 1686704, 2740894, 5481788, 10963576, 21927152]

約数ペア:

[(1, 21927152), (2, 10963576), (4, 5481788), (8, 2740894), (13, 1686704), (16, 1370447), (26, 843352), (52, 421676), (104, 210838), (208, 105419), (271, 80912), (389, 56368), (542, 40456), (778, 28184), (1084, 20228), (1556, 14092), (2168, 10114), (3112, 7046), (3523, 6224), (4336, 5057)]