19613168

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:609

約数の個数: 40

約数和(自身を含む): 40362000

約数和(自身を除く): 20748832

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 149, 152, 298, 304, 433, 596, 866, 1192, 1732, 2384, 2831, 3464, 5662, 6928, 8227, 11324, 16454, 22648, 32908, 45296, 64517, 65816, 129034, 131632, 258068, 516136, 1032272, 1225823, 2451646, 4903292, 9806584, 19613168]

約数ペア:

[(1, 19613168), (2, 9806584), (4, 4903292), (8, 2451646), (16, 1225823), (19, 1032272), (38, 516136), (76, 258068), (149, 131632), (152, 129034), (298, 65816), (304, 64517), (433, 45296), (596, 32908), (866, 22648), (1192, 16454), (1732, 11324), (2384, 8227), (2831, 6928), (3464, 5662)]