217967512

素因数分解:

$2^3\times 7^1\times {\mathrm{163}}^1\times {\mathrm{23879}}^1$

素因数の和:24055

約数の個数: 32

約数和(自身を含む): 469958400

約数和(自身を除く): 251990888

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 163, 326, 652, 1141, 1304, 2282, 4564, 9128, 23879, 47758, 95516, 167153, 191032, 334306, 668612, 1337224, 3892277, 7784554, 15569108, 27245939, 31138216, 54491878, 108983756, 217967512]

約数ペア:

[(1, 217967512), (2, 108983756), (4, 54491878), (7, 31138216), (8, 27245939), (14, 15569108), (28, 7784554), (56, 3892277), (163, 1337224), (326, 668612), (652, 334306), (1141, 191032), (1304, 167153), (2282, 95516), (4564, 47758), (9128, 23879)]