18847408

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:325

約数の個数: 40

約数和(自身を含む): 37564560

約数和(自身を除く): 18717152

約数列:

[1, 2, 4, 8, 16, 101, 107, 109, 202, 214, 218, 404, 428, 436, 808, 856, 872, 1616, 1712, 1744, 10807, 11009, 11663, 21614, 22018, 23326, 43228, 44036, 46652, 86456, 88072, 93304, 172912, 176144, 186608, 1177963, 2355926, 4711852, 9423704, 18847408]

約数ペア:

[(1, 18847408), (2, 9423704), (4, 4711852), (8, 2355926), (16, 1177963), (101, 186608), (107, 176144), (109, 172912), (202, 93304), (214, 88072), (218, 86456), (404, 46652), (428, 44036), (436, 43228), (808, 23326), (856, 22018), (872, 21614), (1616, 11663), (1712, 11009), (1744, 10807)]