21536240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24473}}^1$

素因数の和:24497

約数の個数: 40

約数和(自身を含む): 54625968

約数和(自身を除く): 33089728

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24473, 48946, 97892, 122365, 195784, 244730, 269203, 391568, 489460, 538406, 978920, 1076812, 1346015, 1957840, 2153624, 2692030, 4307248, 5384060, 10768120, 21536240]

約数ペア:

[(1, 21536240), (2, 10768120), (4, 5384060), (5, 4307248), (8, 2692030), (10, 2153624), (11, 1957840), (16, 1346015), (20, 1076812), (22, 978920), (40, 538406), (44, 489460), (55, 391568), (80, 269203), (88, 244730), (110, 195784), (176, 122365), (220, 97892), (440, 48946), (880, 24473)]