21313896

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1087}}^1$

素因数の和:1158

約数の個数: 64

約数和(自身を含む): 57446400

約数和(自身を除く): 36132504

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 43, 57, 76, 86, 114, 129, 152, 172, 228, 258, 344, 456, 516, 817, 1032, 1087, 1634, 2174, 2451, 3261, 3268, 4348, 4902, 6522, 6536, 8696, 9804, 13044, 19608, 20653, 26088, 41306, 46741, 61959, 82612, 93482, 123918, 140223, 165224, 186964, 247836, 280446, 373928, 495672, 560892, 888079, 1121784, 1776158, 2664237, 3552316, 5328474, 7104632, 10656948, 21313896]

約数ペア:

[(1, 21313896), (2, 10656948), (3, 7104632), (4, 5328474), (6, 3552316), (8, 2664237), (12, 1776158), (19, 1121784), (24, 888079), (38, 560892), (43, 495672), (57, 373928), (76, 280446), (86, 247836), (114, 186964), (129, 165224), (152, 140223), (172, 123918), (228, 93482), (258, 82612), (344, 61959), (456, 46741), (516, 41306), (817, 26088), (1032, 20653), (1087, 19608), (1634, 13044), (2174, 9804), (2451, 8696), (3261, 6536), (3268, 6522), (4348, 4902)]