21198786

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{10739}}^1$

素因数の和:10798

約数の個数: 32

約数和(自身を含む): 49489920

約数和(自身を除く): 28291134

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 141, 282, 329, 658, 987, 1974, 10739, 21478, 32217, 64434, 75173, 150346, 225519, 451038, 504733, 1009466, 1514199, 3028398, 3533131, 7066262, 10599393, 21198786]

約数ペア:

[(1, 21198786), (2, 10599393), (3, 7066262), (6, 3533131), (7, 3028398), (14, 1514199), (21, 1009466), (42, 504733), (47, 451038), (94, 225519), (141, 150346), (282, 75173), (329, 64434), (658, 32217), (987, 21478), (1974, 10739)]