21313180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6619}}^1$

素因数の和:6658

約数の個数: 48

約数和(自身を含む): 53383680

約数和(自身を除く): 32070500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6619, 13238, 26476, 33095, 46333, 66190, 92666, 132380, 152237, 185332, 231665, 304474, 463330, 608948, 761185, 926660, 1065659, 1522370, 2131318, 3044740, 4262636, 5328295, 10656590, 21313180]

約数ペア:

[(1, 21313180), (2, 10656590), (4, 5328295), (5, 4262636), (7, 3044740), (10, 2131318), (14, 1522370), (20, 1065659), (23, 926660), (28, 761185), (35, 608948), (46, 463330), (70, 304474), (92, 231665), (115, 185332), (140, 152237), (161, 132380), (230, 92666), (322, 66190), (460, 46333), (644, 33095), (805, 26476), (1610, 13238), (3220, 6619)]