21725892

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1381}}^1$

素因数の和:1433

約数の個数: 72

約数和(自身を含む): 60365760

約数和(自身を除く): 38639868

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 23, 36, 38, 46, 57, 69, 76, 92, 114, 138, 171, 207, 228, 276, 342, 414, 437, 684, 828, 874, 1311, 1381, 1748, 2622, 2762, 3933, 4143, 5244, 5524, 7866, 8286, 12429, 15732, 16572, 24858, 26239, 31763, 49716, 52478, 63526, 78717, 95289, 104956, 127052, 157434, 190578, 236151, 285867, 314868, 381156, 472302, 571734, 603497, 944604, 1143468, 1206994, 1810491, 2413988, 3620982, 5431473, 7241964, 10862946, 21725892]

約数ペア:

[(1, 21725892), (2, 10862946), (3, 7241964), (4, 5431473), (6, 3620982), (9, 2413988), (12, 1810491), (18, 1206994), (19, 1143468), (23, 944604), (36, 603497), (38, 571734), (46, 472302), (57, 381156), (69, 314868), (76, 285867), (92, 236151), (114, 190578), (138, 157434), (171, 127052), (207, 104956), (228, 95289), (276, 78717), (342, 63526), (414, 52478), (437, 49716), (684, 31763), (828, 26239), (874, 24858), (1311, 16572), (1381, 15732), (1748, 12429), (2622, 8286), (2762, 7866), (3933, 5524), (4143, 5244)]