21415978

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1$

素因数の和:382

約数の個数: 32

約数和(自身を含む): 35228160

約数和(自身を除く): 13812182

約数列:

[1, 2, 29, 31, 43, 58, 62, 86, 277, 554, 899, 1247, 1333, 1798, 2494, 2666, 8033, 8587, 11911, 16066, 17174, 23822, 38657, 77314, 249023, 345419, 369241, 498046, 690838, 738482, 10707989, 21415978]

約数ペア:

[(1, 21415978), (2, 10707989), (29, 738482), (31, 690838), (43, 498046), (58, 369241), (62, 345419), (86, 249023), (277, 77314), (554, 38657), (899, 23822), (1247, 17174), (1333, 16066), (1798, 11911), (2494, 8587), (2666, 8033)]