21365172

素因数分解:

$2^2\times 3^2\times {\mathrm{541}}^1\times {\mathrm{1097}}^1$

素因数の和:1648

約数の個数: 36

約数和(自身を含む): 54155556

約数和(自身を除く): 32790384

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 541, 1082, 1097, 1623, 2164, 2194, 3246, 3291, 4388, 4869, 6492, 6582, 9738, 9873, 13164, 19476, 19746, 39492, 593477, 1186954, 1780431, 2373908, 3560862, 5341293, 7121724, 10682586, 21365172]

約数ペア:

[(1, 21365172), (2, 10682586), (3, 7121724), (4, 5341293), (6, 3560862), (9, 2373908), (12, 1780431), (18, 1186954), (36, 593477), (541, 39492), (1082, 19746), (1097, 19476), (1623, 13164), (2164, 9873), (2194, 9738), (3246, 6582), (3291, 6492), (4388, 4869)]