21623216

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71129}}^1$

素因数の和:71156

約数の個数: 20

約数和(自身を含む): 44100600

約数和(自身を除く): 22477384

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71129, 142258, 284516, 569032, 1138064, 1351451, 2702902, 5405804, 10811608, 21623216]

約数ペア:

[(1, 21623216), (2, 10811608), (4, 5405804), (8, 2702902), (16, 1351451), (19, 1138064), (38, 569032), (76, 284516), (152, 142258), (304, 71129)]