19517368

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2801}}^1$

素因数の和:2887

約数の個数: 32

約数和(自身を含む): 40012560

約数和(自身を除く): 20495192

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 104, 134, 268, 536, 871, 1742, 2801, 3484, 5602, 6968, 11204, 22408, 36413, 72826, 145652, 187667, 291304, 375334, 750668, 1501336, 2439671, 4879342, 9758684, 19517368]

約数ペア:

[(1, 19517368), (2, 9758684), (4, 4879342), (8, 2439671), (13, 1501336), (26, 750668), (52, 375334), (67, 291304), (104, 187667), (134, 145652), (268, 72826), (536, 36413), (871, 22408), (1742, 11204), (2801, 6968), (3484, 5602)]