21615624

素因数分解:

$2^3\times 3^2\times {\mathrm{331}}^1\times {\mathrm{907}}^1$

素因数の和:1250

約数の個数: 48

約数和(自身を含む): 58783920

約数和(自身を除く): 37168296

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 331, 662, 907, 993, 1324, 1814, 1986, 2648, 2721, 2979, 3628, 3972, 5442, 5958, 7256, 7944, 8163, 10884, 11916, 16326, 21768, 23832, 32652, 65304, 300217, 600434, 900651, 1200868, 1801302, 2401736, 2701953, 3602604, 5403906, 7205208, 10807812, 21615624]

約数ペア:

[(1, 21615624), (2, 10807812), (3, 7205208), (4, 5403906), (6, 3602604), (8, 2701953), (9, 2401736), (12, 1801302), (18, 1200868), (24, 900651), (36, 600434), (72, 300217), (331, 65304), (662, 32652), (907, 23832), (993, 21768), (1324, 16326), (1814, 11916), (1986, 10884), (2648, 8163), (2721, 7944), (2979, 7256), (3628, 5958), (3972, 5442)]