19875804

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2963}}^1$

素因数の和:3026

約数の個数: 48

約数和(自身を含む): 51123072

約数和(自身を除く): 31247268

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 172, 258, 516, 559, 1118, 1677, 2236, 2963, 3354, 5926, 6708, 8889, 11852, 17778, 35556, 38519, 77038, 115557, 127409, 154076, 231114, 254818, 382227, 462228, 509636, 764454, 1528908, 1656317, 3312634, 4968951, 6625268, 9937902, 19875804]

約数ペア:

[(1, 19875804), (2, 9937902), (3, 6625268), (4, 4968951), (6, 3312634), (12, 1656317), (13, 1528908), (26, 764454), (39, 509636), (43, 462228), (52, 382227), (78, 254818), (86, 231114), (129, 154076), (156, 127409), (172, 115557), (258, 77038), (516, 38519), (559, 35556), (1118, 17778), (1677, 11852), (2236, 8889), (2963, 6708), (3354, 5926)]