21714520

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{877}}^1$

素因数の和:1507

約数の個数: 32

約数和(自身を含む): 48992400

約数和(自身を除く): 27277880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 877, 1238, 1754, 2476, 3095, 3508, 4385, 4952, 6190, 7016, 8770, 12380, 17540, 24760, 35080, 542863, 1085726, 2171452, 2714315, 4342904, 5428630, 10857260, 21714520]

約数ペア:

[(1, 21714520), (2, 10857260), (4, 5428630), (5, 4342904), (8, 2714315), (10, 2171452), (20, 1085726), (40, 542863), (619, 35080), (877, 24760), (1238, 17540), (1754, 12380), (2476, 8770), (3095, 7016), (3508, 6190), (4385, 4952)]