21004020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{116689}}^1$

素因数の和:116704

約数の個数: 36

約数和(自身を含む): 63712740

約数和(自身を除く): 42708720

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 116689, 233378, 350067, 466756, 583445, 700134, 1050201, 1166890, 1400268, 1750335, 2100402, 2333780, 3500670, 4200804, 5251005, 7001340, 10502010, 21004020]

約数ペア:

[(1, 21004020), (2, 10502010), (3, 7001340), (4, 5251005), (5, 4200804), (6, 3500670), (9, 2333780), (10, 2100402), (12, 1750335), (15, 1400268), (18, 1166890), (20, 1050201), (30, 700134), (36, 583445), (45, 466756), (60, 350067), (90, 233378), (180, 116689)]