20731312

素因数分解:

$2^4\times 7^2\times {\mathrm{31}}^1\times {\mathrm{853}}^1$

素因数の和:906

約数の個数: 60

約数和(自身を含む): 48288576

約数和(自身を除く): 27557264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 49, 56, 62, 98, 112, 124, 196, 217, 248, 392, 434, 496, 784, 853, 868, 1519, 1706, 1736, 3038, 3412, 3472, 5971, 6076, 6824, 11942, 12152, 13648, 23884, 24304, 26443, 41797, 47768, 52886, 83594, 95536, 105772, 167188, 185101, 211544, 334376, 370202, 423088, 668752, 740404, 1295707, 1480808, 2591414, 2961616, 5182828, 10365656, 20731312]

約数ペア:

[(1, 20731312), (2, 10365656), (4, 5182828), (7, 2961616), (8, 2591414), (14, 1480808), (16, 1295707), (28, 740404), (31, 668752), (49, 423088), (56, 370202), (62, 334376), (98, 211544), (112, 185101), (124, 167188), (196, 105772), (217, 95536), (248, 83594), (392, 52886), (434, 47768), (496, 41797), (784, 26443), (853, 24304), (868, 23884), (1519, 13648), (1706, 12152), (1736, 11942), (3038, 6824), (3412, 6076), (3472, 5971)]