18451836

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{443}}^1$

素因数の和:555

約数の個数: 72

約数和(自身を含む): 50909040

約数和(自身を除く): 32457204

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 89, 117, 156, 178, 234, 267, 356, 443, 468, 534, 801, 886, 1068, 1157, 1329, 1602, 1772, 2314, 2658, 3204, 3471, 3987, 4628, 5316, 5759, 6942, 7974, 10413, 11518, 13884, 15948, 17277, 20826, 23036, 34554, 39427, 41652, 51831, 69108, 78854, 103662, 118281, 157708, 207324, 236562, 354843, 473124, 512551, 709686, 1025102, 1419372, 1537653, 2050204, 3075306, 4612959, 6150612, 9225918, 18451836]

約数ペア:

[(1, 18451836), (2, 9225918), (3, 6150612), (4, 4612959), (6, 3075306), (9, 2050204), (12, 1537653), (13, 1419372), (18, 1025102), (26, 709686), (36, 512551), (39, 473124), (52, 354843), (78, 236562), (89, 207324), (117, 157708), (156, 118281), (178, 103662), (234, 78854), (267, 69108), (356, 51831), (443, 41652), (468, 39427), (534, 34554), (801, 23036), (886, 20826), (1068, 17277), (1157, 15948), (1329, 13884), (1602, 11518), (1772, 10413), (2314, 7974), (2658, 6942), (3204, 5759), (3471, 5316), (3987, 4628)]