19918284

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{397}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 48275808

約数和(自身を除く): 28357524

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 113, 148, 222, 226, 339, 397, 444, 452, 678, 794, 1191, 1356, 1588, 2382, 4181, 4764, 8362, 12543, 14689, 16724, 25086, 29378, 44067, 44861, 50172, 58756, 88134, 89722, 134583, 176268, 179444, 269166, 538332, 1659857, 3319714, 4979571, 6639428, 9959142, 19918284]

約数ペア:

[(1, 19918284), (2, 9959142), (3, 6639428), (4, 4979571), (6, 3319714), (12, 1659857), (37, 538332), (74, 269166), (111, 179444), (113, 176268), (148, 134583), (222, 89722), (226, 88134), (339, 58756), (397, 50172), (444, 44861), (452, 44067), (678, 29378), (794, 25086), (1191, 16724), (1356, 14689), (1588, 12543), (2382, 8362), (4181, 4764)]