19899936

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{9871}}^1$

素因数の和:9894

約数の個数: 72

約数和(自身を含む): 64681344

約数和(自身を除く): 44781408

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 288, 336, 504, 672, 1008, 2016, 9871, 19742, 29613, 39484, 59226, 69097, 78968, 88839, 118452, 138194, 157936, 177678, 207291, 236904, 276388, 315872, 355356, 414582, 473808, 552776, 621873, 710712, 829164, 947616, 1105552, 1243746, 1421424, 1658328, 2211104, 2487492, 2842848, 3316656, 4974984, 6633312, 9949968, 19899936]

約数ペア:

[(1, 19899936), (2, 9949968), (3, 6633312), (4, 4974984), (6, 3316656), (7, 2842848), (8, 2487492), (9, 2211104), (12, 1658328), (14, 1421424), (16, 1243746), (18, 1105552), (21, 947616), (24, 829164), (28, 710712), (32, 621873), (36, 552776), (42, 473808), (48, 414582), (56, 355356), (63, 315872), (72, 276388), (84, 236904), (96, 207291), (112, 177678), (126, 157936), (144, 138194), (168, 118452), (224, 88839), (252, 78968), (288, 69097), (336, 59226), (504, 39484), (672, 29613), (1008, 19742), (2016, 9871)]