21623640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{367}}^1\times {\mathrm{491}}^1$

素因数の和:872

約数の個数: 64

約数和(自身を含む): 65180160

約数和(自身を除く): 43556520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 367, 491, 734, 982, 1101, 1468, 1473, 1835, 1964, 2202, 2455, 2936, 2946, 3670, 3928, 4404, 4910, 5505, 5892, 7340, 7365, 8808, 9820, 11010, 11784, 14680, 14730, 19640, 22020, 29460, 44040, 58920, 180197, 360394, 540591, 720788, 900985, 1081182, 1441576, 1801970, 2162364, 2702955, 3603940, 4324728, 5405910, 7207880, 10811820, 21623640]

約数ペア:

[(1, 21623640), (2, 10811820), (3, 7207880), (4, 5405910), (5, 4324728), (6, 3603940), (8, 2702955), (10, 2162364), (12, 1801970), (15, 1441576), (20, 1081182), (24, 900985), (30, 720788), (40, 540591), (60, 360394), (120, 180197), (367, 58920), (491, 44040), (734, 29460), (982, 22020), (1101, 19640), (1468, 14730), (1473, 14680), (1835, 11784), (1964, 11010), (2202, 9820), (2455, 8808), (2936, 7365), (2946, 7340), (3670, 5892), (3928, 5505), (4404, 4910)]