21669880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28513}}^1$

素因数の和:28543

約数の個数: 32

約数和(自身を含む): 51325200

約数和(自身を除く): 29655320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28513, 57026, 114052, 142565, 228104, 285130, 541747, 570260, 1083494, 1140520, 2166988, 2708735, 4333976, 5417470, 10834940, 21669880]

約数ペア:

[(1, 21669880), (2, 10834940), (4, 5417470), (5, 4333976), (8, 2708735), (10, 2166988), (19, 1140520), (20, 1083494), (38, 570260), (40, 541747), (76, 285130), (95, 228104), (152, 142565), (190, 114052), (380, 57026), (760, 28513)]