21512512

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1549}}^1$

素因数の和:1599

約数の個数: 56

約数和(自身を含む): 50393600

約数和(自身を除く): 28881088

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 217, 224, 248, 434, 448, 496, 868, 992, 1549, 1736, 1984, 3098, 3472, 6196, 6944, 10843, 12392, 13888, 21686, 24784, 43372, 48019, 49568, 86744, 96038, 99136, 173488, 192076, 336133, 346976, 384152, 672266, 693952, 768304, 1344532, 1536608, 2689064, 3073216, 5378128, 10756256, 21512512]

約数ペア:

[(1, 21512512), (2, 10756256), (4, 5378128), (7, 3073216), (8, 2689064), (14, 1536608), (16, 1344532), (28, 768304), (31, 693952), (32, 672266), (56, 384152), (62, 346976), (64, 336133), (112, 192076), (124, 173488), (217, 99136), (224, 96038), (248, 86744), (434, 49568), (448, 48019), (496, 43372), (868, 24784), (992, 21686), (1549, 13888), (1736, 12392), (1984, 10843), (3098, 6944), (3472, 6196)]