21921296

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{971}}^1$

素因数の和:1079

約数の個数: 40

約数和(自身を含む): 45559584

約数和(自身を除く): 23638288

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 83, 136, 166, 272, 332, 664, 971, 1328, 1411, 1942, 2822, 3884, 5644, 7768, 11288, 15536, 16507, 22576, 33014, 66028, 80593, 132056, 161186, 264112, 322372, 644744, 1289488, 1370081, 2740162, 5480324, 10960648, 21921296]

約数ペア:

[(1, 21921296), (2, 10960648), (4, 5480324), (8, 2740162), (16, 1370081), (17, 1289488), (34, 644744), (68, 322372), (83, 264112), (136, 161186), (166, 132056), (272, 80593), (332, 66028), (664, 33014), (971, 22576), (1328, 16507), (1411, 15536), (1942, 11288), (2822, 7768), (3884, 5644)]