209709972

素因数分解:

$2^2\times 3^6\times {\mathrm{71917}}^1$

素因数の和:71939

約数の個数: 42

約数和(自身を含む): 550244618

約数和(自身を除く): 340534646

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2916, 71917, 143834, 215751, 287668, 431502, 647253, 863004, 1294506, 1941759, 2589012, 3883518, 5825277, 7767036, 11650554, 17475831, 23301108, 34951662, 52427493, 69903324, 104854986, 209709972]

約数ペア:

[(1, 209709972), (2, 104854986), (3, 69903324), (4, 52427493), (6, 34951662), (9, 23301108), (12, 17475831), (18, 11650554), (27, 7767036), (36, 5825277), (54, 3883518), (81, 2589012), (108, 1941759), (162, 1294506), (243, 863004), (324, 647253), (486, 431502), (729, 287668), (972, 215751), (1458, 143834), (2916, 71917)]