20696775477

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1\times {\mathrm{1031}}^1$

素因数の和:1371

約数の個数: 96

約数和(自身を含む): 35322635520

約数和(自身を除く): 14625860043

約数列:

[1, 3, 7, 17, 21, 29, 49, 51, 87, 119, 147, 203, 277, 357, 493, 609, 831, 833, 1031, 1421, 1479, 1939, 2499, 3093, 3451, 4263, 4709, 5817, 7217, 8033, 10353, 13573, 14127, 17527, 21651, 24099, 24157, 29899, 32963, 40719, 50519, 52581, 56231, 72471, 89697, 98889, 122689, 136561, 151557, 168693, 209293, 230741, 285587, 368067, 393617, 409683, 508283, 627879, 692223, 856761, 858823, 955927, 1180851, 1465051, 1524849, 1999109, 2576469, 2867781, 3557981, 4395153, 4854979, 5997327, 6691489, 8282023, 10673943, 13993763, 14564937, 20074467, 24846069, 24905867, 33984853, 41981289, 57974161, 74717601, 101954559, 140794391, 173922483, 237893971, 405819127, 422383173, 713681913, 985560737, 1217457381, 2956682211, 6898925159, 20696775477]

約数ペア:

[(1, 20696775477), (3, 6898925159), (7, 2956682211), (17, 1217457381), (21, 985560737), (29, 713681913), (49, 422383173), (51, 405819127), (87, 237893971), (119, 173922483), (147, 140794391), (203, 101954559), (277, 74717601), (357, 57974161), (493, 41981289), (609, 33984853), (831, 24905867), (833, 24846069), (1031, 20074467), (1421, 14564937), (1479, 13993763), (1939, 10673943), (2499, 8282023), (3093, 6691489), (3451, 5997327), (4263, 4854979), (4709, 4395153), (5817, 3557981), (7217, 2867781), (8033, 2576469), (10353, 1999109), (13573, 1524849), (14127, 1465051), (17527, 1180851), (21651, 955927), (24099, 858823), (24157, 856761), (29899, 692223), (32963, 627879), (40719, 508283), (50519, 409683), (52581, 393617), (56231, 368067), (72471, 285587), (89697, 230741), (98889, 209293), (122689, 168693), (136561, 151557)]