18063855

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 33785856

約数和(自身を除く): 15722001

約数列:

[1, 3, 5, 9, 15, 23, 31, 45, 69, 93, 115, 155, 207, 279, 345, 465, 563, 713, 1035, 1395, 1689, 2139, 2815, 3565, 5067, 6417, 8445, 10695, 12949, 17453, 25335, 32085, 38847, 52359, 64745, 87265, 116541, 157077, 194235, 261795, 401419, 582705, 785385, 1204257, 2007095, 3612771, 6021285, 18063855]

約数ペア:

[(1, 18063855), (3, 6021285), (5, 3612771), (9, 2007095), (15, 1204257), (23, 785385), (31, 582705), (45, 401419), (69, 261795), (93, 194235), (115, 157077), (155, 116541), (207, 87265), (279, 64745), (345, 52359), (465, 38847), (563, 32085), (713, 25335), (1035, 17453), (1395, 12949), (1689, 10695), (2139, 8445), (2815, 6417), (3565, 5067)]