215123456

素因数分解:

$2^9\times {\mathrm{420163}}^1$

素因数の和:420181

約数の個数: 20

約数和(自身を含む): 429827772

約数和(自身を除く): 214704316

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 420163, 840326, 1680652, 3361304, 6722608, 13445216, 26890432, 53780864, 107561728, 215123456]

約数ペア:

[(1, 215123456), (2, 107561728), (4, 53780864), (8, 26890432), (16, 13445216), (32, 6722608), (64, 3361304), (128, 1680652), (256, 840326), (512, 420163)]