21596760

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19997}}^1$

素因数の和:20017

約数の個数: 64

約数和(自身を含む): 71992800

約数和(自身を除く): 50396040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19997, 39994, 59991, 79988, 99985, 119982, 159976, 179973, 199970, 239964, 299955, 359946, 399940, 479928, 539919, 599910, 719892, 799880, 899865, 1079838, 1199820, 1439784, 1799730, 2159676, 2399640, 2699595, 3599460, 4319352, 5399190, 7198920, 10798380, 21596760]

約数ペア:

[(1, 21596760), (2, 10798380), (3, 7198920), (4, 5399190), (5, 4319352), (6, 3599460), (8, 2699595), (9, 2399640), (10, 2159676), (12, 1799730), (15, 1439784), (18, 1199820), (20, 1079838), (24, 899865), (27, 799880), (30, 719892), (36, 599910), (40, 539919), (45, 479928), (54, 399940), (60, 359946), (72, 299955), (90, 239964), (108, 199970), (120, 179973), (135, 159976), (180, 119982), (216, 99985), (270, 79988), (360, 59991), (540, 39994), (1080, 19997)]