21000994538

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{569}}^1\times {\mathrm{971279}}^1$

素因数の和:971869

約数の個数: 16

約数和(自身を含む): 33217776000

約数和(自身を除く): 12216781462

約数列:

[1, 2, 19, 38, 569, 1138, 10811, 21622, 971279, 1942558, 18454301, 36908602, 552657751, 1105315502, 10500497269, 21000994538]

約数ペア:

[(1, 21000994538), (2, 10500497269), (19, 1105315502), (38, 552657751), (569, 36908602), (1138, 18454301), (10811, 1942558), (21622, 971279)]