19814508

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1289}}^1$

素因数の和:1367

約数の個数: 72

約数和(自身を含む): 58225440

約数和(自身を除く): 38410932

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 61, 63, 84, 122, 126, 183, 244, 252, 366, 427, 549, 732, 854, 1098, 1281, 1289, 1708, 2196, 2562, 2578, 3843, 3867, 5124, 5156, 7686, 7734, 9023, 11601, 15372, 15468, 18046, 23202, 27069, 36092, 46404, 54138, 78629, 81207, 108276, 157258, 162414, 235887, 314516, 324828, 471774, 550403, 707661, 943548, 1100806, 1415322, 1651209, 2201612, 2830644, 3302418, 4953627, 6604836, 9907254, 19814508]

約数ペア:

[(1, 19814508), (2, 9907254), (3, 6604836), (4, 4953627), (6, 3302418), (7, 2830644), (9, 2201612), (12, 1651209), (14, 1415322), (18, 1100806), (21, 943548), (28, 707661), (36, 550403), (42, 471774), (61, 324828), (63, 314516), (84, 235887), (122, 162414), (126, 157258), (183, 108276), (244, 81207), (252, 78629), (366, 54138), (427, 46404), (549, 36092), (732, 27069), (854, 23202), (1098, 18046), (1281, 15468), (1289, 15372), (1708, 11601), (2196, 9023), (2562, 7734), (2578, 7686), (3843, 5156), (3867, 5124)]