21211508738

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1\times {\mathrm{811}}^1$

素因数の和:1323

約数の個数: 64

約数和(自身を含む): 37568966400

約数和(自身を除く): 16357457662

約数列:

[1, 2, 7, 14, 53, 101, 106, 202, 349, 371, 698, 707, 742, 811, 1414, 1622, 2443, 4886, 5353, 5677, 10706, 11354, 18497, 35249, 36994, 37471, 42983, 70498, 74942, 81911, 85966, 129479, 163822, 246743, 258958, 283039, 300881, 493486, 566078, 573377, 601762, 1146754, 1868197, 1981273, 3736394, 3962546, 4341283, 8682566, 13077379, 15001067, 26154758, 28586939, 30002134, 30388981, 57173878, 60777962, 105007469, 200108573, 210014938, 400217146, 1515107767, 3030215534, 10605754369, 21211508738]

約数ペア:

[(1, 21211508738), (2, 10605754369), (7, 3030215534), (14, 1515107767), (53, 400217146), (101, 210014938), (106, 200108573), (202, 105007469), (349, 60777962), (371, 57173878), (698, 30388981), (707, 30002134), (742, 28586939), (811, 26154758), (1414, 15001067), (1622, 13077379), (2443, 8682566), (4886, 4341283), (5353, 3962546), (5677, 3736394), (10706, 1981273), (11354, 1868197), (18497, 1146754), (35249, 601762), (36994, 573377), (37471, 566078), (42983, 493486), (70498, 300881), (74942, 283039), (81911, 258958), (85966, 246743), (129479, 163822)]