21744216

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^2\times {\mathrm{1787}}^1$

素因数の和:1825

約数の個数: 72

約数和(自身を含む): 63804780

約数和(自身を除く): 42060564

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 169, 234, 312, 338, 468, 507, 676, 936, 1014, 1352, 1521, 1787, 2028, 3042, 3574, 4056, 5361, 6084, 7148, 10722, 12168, 14296, 16083, 21444, 23231, 32166, 42888, 46462, 64332, 69693, 92924, 128664, 139386, 185848, 209079, 278772, 302003, 418158, 557544, 604006, 836316, 906009, 1208012, 1672632, 1812018, 2416024, 2718027, 3624036, 5436054, 7248072, 10872108, 21744216]

約数ペア:

[(1, 21744216), (2, 10872108), (3, 7248072), (4, 5436054), (6, 3624036), (8, 2718027), (9, 2416024), (12, 1812018), (13, 1672632), (18, 1208012), (24, 906009), (26, 836316), (36, 604006), (39, 557544), (52, 418158), (72, 302003), (78, 278772), (104, 209079), (117, 185848), (156, 139386), (169, 128664), (234, 92924), (312, 69693), (338, 64332), (468, 46462), (507, 42888), (676, 32166), (936, 23231), (1014, 21444), (1352, 16083), (1521, 14296), (1787, 12168), (2028, 10722), (3042, 7148), (3574, 6084), (4056, 5361)]