21921522

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{431}}^1$

素因数の和:623

約数の個数: 48

約数和(自身を含む): 51414912

約数和(自身を除く): 29493390

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 173, 294, 346, 431, 519, 862, 1038, 1211, 1293, 2422, 2586, 3017, 3633, 6034, 7266, 8477, 9051, 16954, 18102, 21119, 25431, 42238, 50862, 63357, 74563, 126714, 149126, 223689, 447378, 521941, 1043882, 1565823, 3131646, 3653587, 7307174, 10960761, 21921522]

約数ペア:

[(1, 21921522), (2, 10960761), (3, 7307174), (6, 3653587), (7, 3131646), (14, 1565823), (21, 1043882), (42, 521941), (49, 447378), (98, 223689), (147, 149126), (173, 126714), (294, 74563), (346, 63357), (431, 50862), (519, 42238), (862, 25431), (1038, 21119), (1211, 18102), (1293, 16954), (2422, 9051), (2586, 8477), (3017, 7266), (3633, 6034)]