217921912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{123259}}^1$

素因数の和:123295

約数の個数: 32

約数和(自身を含む): 465922800

約数和(自身を除く): 248000888

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 123259, 246518, 493036, 986072, 1602367, 2095403, 3204734, 4190806, 6409468, 8381612, 12818936, 16763224, 27240239, 54480478, 108960956, 217921912]

約数ペア:

[(1, 217921912), (2, 108960956), (4, 54480478), (8, 27240239), (13, 16763224), (17, 12818936), (26, 8381612), (34, 6409468), (52, 4190806), (68, 3204734), (104, 2095403), (136, 1602367), (221, 986072), (442, 493036), (884, 246518), (1768, 123259)]