21059172

素因数分解:

$2^2\times 3^2\times {\mathrm{67}}^1\times {\mathrm{8731}}^1$

素因数の和:8808

約数の個数: 36

約数和(自身を含む): 54033616

約数和(自身を除く): 32974444

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 67, 134, 201, 268, 402, 603, 804, 1206, 2412, 8731, 17462, 26193, 34924, 52386, 78579, 104772, 157158, 314316, 584977, 1169954, 1754931, 2339908, 3509862, 5264793, 7019724, 10529586, 21059172]

約数ペア:

[(1, 21059172), (2, 10529586), (3, 7019724), (4, 5264793), (6, 3509862), (9, 2339908), (12, 1754931), (18, 1169954), (36, 584977), (67, 314316), (134, 157158), (201, 104772), (268, 78579), (402, 52386), (603, 34924), (804, 26193), (1206, 17462), (2412, 8731)]