19906348

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{1319}}^1$

素因数の和:1355

約数の個数: 48

約数和(自身を含む): 44352000

約数和(自身を除く): 24445652

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 343, 539, 686, 1078, 1319, 1372, 2156, 2638, 3773, 5276, 7546, 9233, 14509, 15092, 18466, 29018, 36932, 58036, 64631, 101563, 129262, 203126, 258524, 406252, 452417, 710941, 904834, 1421882, 1809668, 2843764, 4976587, 9953174, 19906348]

約数ペア:

[(1, 19906348), (2, 9953174), (4, 4976587), (7, 2843764), (11, 1809668), (14, 1421882), (22, 904834), (28, 710941), (44, 452417), (49, 406252), (77, 258524), (98, 203126), (154, 129262), (196, 101563), (308, 64631), (343, 58036), (539, 36932), (686, 29018), (1078, 18466), (1319, 15092), (1372, 14509), (2156, 9233), (2638, 7546), (3773, 5276)]