19768788

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{797}}^1$

素因数の和:873

約数の個数: 72

約数和(自身を含む): 54899208

約数和(自身を除く): 35130420

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 53, 78, 106, 117, 156, 159, 212, 234, 318, 468, 477, 636, 689, 797, 954, 1378, 1594, 1908, 2067, 2391, 2756, 3188, 4134, 4782, 6201, 7173, 8268, 9564, 10361, 12402, 14346, 20722, 24804, 28692, 31083, 41444, 42241, 62166, 84482, 93249, 124332, 126723, 168964, 186498, 253446, 372996, 380169, 506892, 549133, 760338, 1098266, 1520676, 1647399, 2196532, 3294798, 4942197, 6589596, 9884394, 19768788]

約数ペア:

[(1, 19768788), (2, 9884394), (3, 6589596), (4, 4942197), (6, 3294798), (9, 2196532), (12, 1647399), (13, 1520676), (18, 1098266), (26, 760338), (36, 549133), (39, 506892), (52, 380169), (53, 372996), (78, 253446), (106, 186498), (117, 168964), (156, 126723), (159, 124332), (212, 93249), (234, 84482), (318, 62166), (468, 42241), (477, 41444), (636, 31083), (689, 28692), (797, 24804), (954, 20722), (1378, 14346), (1594, 12402), (1908, 10361), (2067, 9564), (2391, 8268), (2756, 7173), (3188, 6201), (4134, 4782)]