19219808

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:327

約数の個数: 48

約数和(自身を含む): 39690000

約数和(自身を除く): 20470192

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 116, 139, 149, 232, 278, 298, 464, 556, 596, 928, 1112, 1192, 2224, 2384, 4031, 4321, 4448, 4768, 8062, 8642, 16124, 17284, 20711, 32248, 34568, 41422, 64496, 69136, 82844, 128992, 138272, 165688, 331376, 600619, 662752, 1201238, 2402476, 4804952, 9609904, 19219808]

約数ペア:

[(1, 19219808), (2, 9609904), (4, 4804952), (8, 2402476), (16, 1201238), (29, 662752), (32, 600619), (58, 331376), (116, 165688), (139, 138272), (149, 128992), (232, 82844), (278, 69136), (298, 64496), (464, 41422), (556, 34568), (596, 32248), (928, 20711), (1112, 17284), (1192, 16124), (2224, 8642), (2384, 8062), (4031, 4768), (4321, 4448)]