20424996

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 53621568

約数和(自身を除く): 33196572

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 71, 122, 131, 142, 183, 213, 244, 262, 284, 366, 393, 426, 524, 549, 639, 732, 786, 852, 1098, 1179, 1278, 1572, 2196, 2358, 2556, 4331, 4716, 7991, 8662, 9301, 12993, 15982, 17324, 18602, 23973, 25986, 27903, 31964, 37204, 38979, 47946, 51972, 55806, 71919, 77958, 83709, 95892, 111612, 143838, 155916, 167418, 287676, 334836, 567361, 1134722, 1702083, 2269444, 3404166, 5106249, 6808332, 10212498, 20424996]

約数ペア:

[(1, 20424996), (2, 10212498), (3, 6808332), (4, 5106249), (6, 3404166), (9, 2269444), (12, 1702083), (18, 1134722), (36, 567361), (61, 334836), (71, 287676), (122, 167418), (131, 155916), (142, 143838), (183, 111612), (213, 95892), (244, 83709), (262, 77958), (284, 71919), (366, 55806), (393, 51972), (426, 47946), (524, 38979), (549, 37204), (639, 31964), (732, 27903), (786, 25986), (852, 23973), (1098, 18602), (1179, 17324), (1278, 15982), (1572, 12993), (2196, 9301), (2358, 8662), (2556, 7991), (4331, 4716)]