21216996

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31019}}^1$

素因数の和:31048

約数の個数: 36

約数和(自身を含む): 56456400

約数和(自身を除く): 35239404

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 31019, 62038, 93057, 124076, 186114, 279171, 372228, 558342, 589361, 1116684, 1178722, 1768083, 2357444, 3536166, 5304249, 7072332, 10608498, 21216996]

約数ペア:

[(1, 21216996), (2, 10608498), (3, 7072332), (4, 5304249), (6, 3536166), (9, 2357444), (12, 1768083), (18, 1178722), (19, 1116684), (36, 589361), (38, 558342), (57, 372228), (76, 279171), (114, 186114), (171, 124076), (228, 93057), (342, 62038), (684, 31019)]