21495064

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{593}}^1$

素因数の和:819

約数の個数: 32

約数和(自身を含む): 42340320

約数和(自身を除く): 20845256

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 197, 394, 593, 788, 1186, 1576, 2372, 4531, 4744, 9062, 13639, 18124, 27278, 36248, 54556, 109112, 116821, 233642, 467284, 934568, 2686883, 5373766, 10747532, 21495064]

約数ペア:

[(1, 21495064), (2, 10747532), (4, 5373766), (8, 2686883), (23, 934568), (46, 467284), (92, 233642), (184, 116821), (197, 109112), (394, 54556), (593, 36248), (788, 27278), (1186, 18124), (1576, 13639), (2372, 9062), (4531, 4744)]