21694920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13907}}^1$

素因数の和:13934

約数の個数: 64

約数和(自身を含む): 70096320

約数和(自身を除く): 48401400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13907, 27814, 41721, 55628, 69535, 83442, 111256, 139070, 166884, 180791, 208605, 278140, 333768, 361582, 417210, 542373, 556280, 723164, 834420, 903955, 1084746, 1446328, 1668840, 1807910, 2169492, 2711865, 3615820, 4338984, 5423730, 7231640, 10847460, 21694920]

約数ペア:

[(1, 21694920), (2, 10847460), (3, 7231640), (4, 5423730), (5, 4338984), (6, 3615820), (8, 2711865), (10, 2169492), (12, 1807910), (13, 1668840), (15, 1446328), (20, 1084746), (24, 903955), (26, 834420), (30, 723164), (39, 556280), (40, 542373), (52, 417210), (60, 361582), (65, 333768), (78, 278140), (104, 208605), (120, 180791), (130, 166884), (156, 139070), (195, 111256), (260, 83442), (312, 69535), (390, 55628), (520, 41721), (780, 27814), (1560, 13907)]