19905228

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{78989}}^1$

素因数の和:79006

約数の個数: 36

約数和(自身を含む): 57504720

約数和(自身を除く): 37599492

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 78989, 157978, 236967, 315956, 473934, 552923, 710901, 947868, 1105846, 1421802, 1658769, 2211692, 2843604, 3317538, 4976307, 6635076, 9952614, 19905228]

約数ペア:

[(1, 19905228), (2, 9952614), (3, 6635076), (4, 4976307), (6, 3317538), (7, 2843604), (9, 2211692), (12, 1658769), (14, 1421802), (18, 1105846), (21, 947868), (28, 710901), (36, 552923), (42, 473934), (63, 315956), (84, 236967), (126, 157978), (252, 78989)]