21000000612

素因数分解:

$2^2\times 3^1\times {\mathrm{137}}^1\times {\mathrm{241}}^1\times {\mathrm{53003}}^1$

素因数の和:53388

約数の個数: 48

約数和(自身を含む): 49563404352

約数和(自身を除く): 28563403740

約数列:

[1, 2, 3, 4, 6, 12, 137, 241, 274, 411, 482, 548, 723, 822, 964, 1446, 1644, 2892, 33017, 53003, 66034, 99051, 106006, 132068, 159009, 198102, 212012, 318018, 396204, 636036, 7261411, 12773723, 14522822, 21784233, 25547446, 29045644, 38321169, 43568466, 51094892, 76642338, 87136932, 153284676, 1750000051, 3500000102, 5250000153, 7000000204, 10500000306, 21000000612]

約数ペア:

[(1, 21000000612), (2, 10500000306), (3, 7000000204), (4, 5250000153), (6, 3500000102), (12, 1750000051), (137, 153284676), (241, 87136932), (274, 76642338), (411, 51094892), (482, 43568466), (548, 38321169), (723, 29045644), (822, 25547446), (964, 21784233), (1446, 14522822), (1644, 12773723), (2892, 7261411), (33017, 636036), (53003, 396204), (66034, 318018), (99051, 212012), (106006, 198102), (132068, 159009)]