19992912

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{10159}}^1$

素因数の和:10211

約数の個数: 40

約数和(自身を含む): 52913280

約数和(自身を除く): 32920368

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 10159, 20318, 30477, 40636, 60954, 81272, 121908, 162544, 243816, 416519, 487632, 833038, 1249557, 1666076, 2499114, 3332152, 4998228, 6664304, 9996456, 19992912]

約数ペア:

[(1, 19992912), (2, 9996456), (3, 6664304), (4, 4998228), (6, 3332152), (8, 2499114), (12, 1666076), (16, 1249557), (24, 833038), (41, 487632), (48, 416519), (82, 243816), (123, 162544), (164, 121908), (246, 81272), (328, 60954), (492, 40636), (656, 30477), (984, 20318), (1968, 10159)]