21160904

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{337}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 40884480

約数和(自身を除く): 19723576

約数列:

[1, 2, 4, 8, 47, 94, 167, 188, 334, 337, 376, 668, 674, 1336, 1348, 2696, 7849, 15698, 15839, 31396, 31678, 56279, 62792, 63356, 112558, 126712, 225116, 450232, 2645113, 5290226, 10580452, 21160904]

約数ペア:

[(1, 21160904), (2, 10580452), (4, 5290226), (8, 2645113), (47, 450232), (94, 225116), (167, 126712), (188, 112558), (334, 63356), (337, 62792), (376, 56279), (668, 31678), (674, 31396), (1336, 15839), (1348, 15698), (2696, 7849)]