21472480

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3121}}^1$

素因数の和:3179

約数の個数: 48

約数和(自身を含む): 51925104

約数和(自身を除く): 30452624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3121, 3440, 6242, 6880, 12484, 15605, 24968, 31210, 49936, 62420, 99872, 124840, 134203, 249680, 268406, 499360, 536812, 671015, 1073624, 1342030, 2147248, 2684060, 4294496, 5368120, 10736240, 21472480]

約数ペア:

[(1, 21472480), (2, 10736240), (4, 5368120), (5, 4294496), (8, 2684060), (10, 2147248), (16, 1342030), (20, 1073624), (32, 671015), (40, 536812), (43, 499360), (80, 268406), (86, 249680), (160, 134203), (172, 124840), (215, 99872), (344, 62420), (430, 49936), (688, 31210), (860, 24968), (1376, 15605), (1720, 12484), (3121, 6880), (3440, 6242)]