21000383990

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1\times {\mathrm{77713}}^1$

素因数の和:78224

約数の個数: 32

約数和(自身を含む): 38507597856

約数和(自身を除く): 17507213866

約数列:

[1, 2, 5, 10, 61, 122, 305, 443, 610, 886, 2215, 4430, 27023, 54046, 77713, 135115, 155426, 270230, 388565, 777130, 4740493, 9480986, 23702465, 34426859, 47404930, 68853718, 172134295, 344268590, 2100038399, 4200076798, 10500191995, 21000383990]

約数ペア:

[(1, 21000383990), (2, 10500191995), (5, 4200076798), (10, 2100038399), (61, 344268590), (122, 172134295), (305, 68853718), (443, 47404930), (610, 34426859), (886, 23702465), (2215, 9480986), (4430, 4740493), (27023, 777130), (54046, 388565), (77713, 270230), (135115, 155426)]