21308688

素因数分解:

$2^4\times 3^2\times {\mathrm{147977}}^1$

素因数の和:147991

約数の個数: 30

約数和(自身を含む): 59635134

約数和(自身を除く): 38326446

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 147977, 295954, 443931, 591908, 887862, 1183816, 1331793, 1775724, 2367632, 2663586, 3551448, 5327172, 7102896, 10654344, 21308688]

約数ペア:

[(1, 21308688), (2, 10654344), (3, 7102896), (4, 5327172), (6, 3551448), (8, 2663586), (9, 2367632), (12, 1775724), (16, 1331793), (18, 1183816), (24, 887862), (36, 591908), (48, 443931), (72, 295954), (144, 147977)]