21661300

素因数分解:

$2^2\times 5^2\times {\mathrm{251}}^1\times {\mathrm{863}}^1$

素因数の和:1128

約数の個数: 36

約数和(自身を含む): 47246976

約数和(自身を除く): 25585676

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 251, 502, 863, 1004, 1255, 1726, 2510, 3452, 4315, 5020, 6275, 8630, 12550, 17260, 21575, 25100, 43150, 86300, 216613, 433226, 866452, 1083065, 2166130, 4332260, 5415325, 10830650, 21661300]

約数ペア:

[(1, 21661300), (2, 10830650), (4, 5415325), (5, 4332260), (10, 2166130), (20, 1083065), (25, 866452), (50, 433226), (100, 216613), (251, 86300), (502, 43150), (863, 25100), (1004, 21575), (1255, 17260), (1726, 12550), (2510, 8630), (3452, 6275), (4315, 5020)]