20809615959

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1\times {\mathrm{751}}^1$

素因数の和:1138

約数の個数: 80

約数和(自身を含む): 34355667456

約数和(自身を除く): 13546051497

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 137, 227, 297, 411, 681, 751, 891, 1233, 1507, 2043, 2253, 2497, 3699, 4521, 6129, 6759, 7491, 8261, 11097, 13563, 18387, 20277, 22473, 24783, 31099, 40689, 60831, 67419, 74349, 93297, 102887, 122067, 170477, 202257, 223047, 279891, 308661, 342089, 511431, 669141, 839673, 925983, 1026267, 1131757, 1534293, 1875247, 2519019, 2777949, 3078801, 3395271, 4602879, 5625741, 8333847, 9236403, 10185813, 13808637, 16877223, 23355349, 27709209, 30557439, 50631669, 70066047, 91672317, 151895007, 210198141, 256908839, 630594423, 770726517, 1891783269, 2312179551, 6936538653, 20809615959]

約数ペア:

[(1, 20809615959), (3, 6936538653), (9, 2312179551), (11, 1891783269), (27, 770726517), (33, 630594423), (81, 256908839), (99, 210198141), (137, 151895007), (227, 91672317), (297, 70066047), (411, 50631669), (681, 30557439), (751, 27709209), (891, 23355349), (1233, 16877223), (1507, 13808637), (2043, 10185813), (2253, 9236403), (2497, 8333847), (3699, 5625741), (4521, 4602879), (6129, 3395271), (6759, 3078801), (7491, 2777949), (8261, 2519019), (11097, 1875247), (13563, 1534293), (18387, 1131757), (20277, 1026267), (22473, 925983), (24783, 839673), (31099, 669141), (40689, 511431), (60831, 342089), (67419, 308661), (74349, 279891), (93297, 223047), (102887, 202257), (122067, 170477)]