19619696

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28517}}^1$

素因数の和:28568

約数の個数: 20

約数和(自身を含む): 38898552

約数和(自身を除く): 19278856

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28517, 57034, 114068, 228136, 456272, 1226231, 2452462, 4904924, 9809848, 19619696]

約数ペア:

[(1, 19619696), (2, 9809848), (4, 4904924), (8, 2452462), (16, 1226231), (43, 456272), (86, 228136), (172, 114068), (344, 57034), (688, 28517)]