21454501551

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{5807}}^1$

素因数の和:6044

約数の個数: 64

約数和(自身を含む): 35327508480

約数和(自身を除く): 13873006929

約数列:

[1, 3, 7, 17, 21, 51, 79, 119, 131, 237, 357, 393, 553, 917, 1343, 1659, 2227, 2751, 4029, 5807, 6681, 9401, 10349, 15589, 17421, 28203, 31047, 40649, 46767, 72443, 98719, 121947, 175933, 217329, 296157, 458753, 527799, 691033, 760717, 1231531, 1376259, 2073099, 2282151, 3211271, 3694593, 5325019, 7798801, 9633813, 12932189, 15975057, 23396403, 38796567, 54591607, 60096643, 90525323, 163774821, 180289929, 271575969, 420676501, 1021642931, 1262029503, 3064928793, 7151500517, 21454501551]

約数ペア:

[(1, 21454501551), (3, 7151500517), (7, 3064928793), (17, 1262029503), (21, 1021642931), (51, 420676501), (79, 271575969), (119, 180289929), (131, 163774821), (237, 90525323), (357, 60096643), (393, 54591607), (553, 38796567), (917, 23396403), (1343, 15975057), (1659, 12932189), (2227, 9633813), (2751, 7798801), (4029, 5325019), (5807, 3694593), (6681, 3211271), (9401, 2282151), (10349, 2073099), (15589, 1376259), (17421, 1231531), (28203, 760717), (31047, 691033), (40649, 527799), (46767, 458753), (72443, 296157), (98719, 217329), (121947, 175933)]