21938238

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1109}}^1$

素因数の和:1281

約数の個数: 48

約数和(自身を含む): 54718560

約数和(自身を除く): 32780322

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 157, 314, 471, 942, 1099, 1109, 1413, 2198, 2218, 2826, 3297, 3327, 6594, 6654, 7763, 9891, 9981, 15526, 19782, 19962, 23289, 46578, 69867, 139734, 174113, 348226, 522339, 1044678, 1218791, 1567017, 2437582, 3134034, 3656373, 7312746, 10969119, 21938238]

約数ペア:

[(1, 21938238), (2, 10969119), (3, 7312746), (6, 3656373), (7, 3134034), (9, 2437582), (14, 1567017), (18, 1218791), (21, 1044678), (42, 522339), (63, 348226), (126, 174113), (157, 139734), (314, 69867), (471, 46578), (942, 23289), (1099, 19962), (1109, 19782), (1413, 15526), (2198, 9981), (2218, 9891), (2826, 7763), (3297, 6654), (3327, 6594)]