31721456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8971}}^1$

素因数の和:9009

約数の個数: 40

約数和(自身を含む): 70089264

約数和(自身を除く): 38367808

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 8971, 17942, 35884, 71768, 116623, 143536, 152507, 233246, 305014, 466492, 610028, 932984, 1220056, 1865968, 1982591, 2440112, 3965182, 7930364, 15860728, 31721456]

約数ペア:

[(1, 31721456), (2, 15860728), (4, 7930364), (8, 3965182), (13, 2440112), (16, 1982591), (17, 1865968), (26, 1220056), (34, 932984), (52, 610028), (68, 466492), (104, 305014), (136, 233246), (208, 152507), (221, 143536), (272, 116623), (442, 71768), (884, 35884), (1768, 17942), (3536, 8971)]