21341488

素因数分解:

$2^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2141}}^1$

素因数の和:2245

約数の個数: 40

約数和(自身を含む): 47809440

約数和(自身を除く): 26467952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 89, 112, 178, 356, 623, 712, 1246, 1424, 2141, 2492, 4282, 4984, 8564, 9968, 14987, 17128, 29974, 34256, 59948, 119896, 190549, 239792, 381098, 762196, 1333843, 1524392, 2667686, 3048784, 5335372, 10670744, 21341488]

約数ペア:

[(1, 21341488), (2, 10670744), (4, 5335372), (7, 3048784), (8, 2667686), (14, 1524392), (16, 1333843), (28, 762196), (56, 381098), (89, 239792), (112, 190549), (178, 119896), (356, 59948), (623, 34256), (712, 29974), (1246, 17128), (1424, 14987), (2141, 9968), (2492, 8564), (4282, 4984)]