21373712

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6781}}^1$

素因数の和:6986

約数の個数: 20

約数和(自身を含む): 41627916

約数和(自身を除く): 20254204

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6781, 13562, 27124, 54248, 108496, 1335857, 2671714, 5343428, 10686856, 21373712]

約数ペア:

[(1, 21373712), (2, 10686856), (4, 5343428), (8, 2671714), (16, 1335857), (197, 108496), (394, 54248), (788, 27124), (1576, 13562), (3152, 6781)]