19811243848

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{5209}}^1\times {\mathrm{3929}}^1$

素因数の和:9166

約数の個数: 48

約数和(自身を含む): 40848223500

約数和(自身を除く): 21036979652

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 3929, 5209, 7858, 10418, 15716, 20836, 31432, 41672, 43219, 57299, 86438, 114598, 172876, 229196, 345752, 458392, 475409, 630289, 950818, 1260578, 1901636, 2521156, 3803272, 5042312, 20466161, 40932322, 81864644, 163729288, 225127771, 450255542, 900511084, 1801022168, 2476405481, 4952810962, 9905621924, 19811243848]

約数ペア:

[(1, 19811243848), (2, 9905621924), (4, 4952810962), (8, 2476405481), (11, 1801022168), (22, 900511084), (44, 450255542), (88, 225127771), (121, 163729288), (242, 81864644), (484, 40932322), (968, 20466161), (3929, 5042312), (5209, 3803272), (7858, 2521156), (10418, 1901636), (15716, 1260578), (20836, 950818), (31432, 630289), (41672, 475409), (43219, 458392), (57299, 345752), (86438, 229196), (114598, 172876)]