16821660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{571}}^1$

素因数の和:1074

約数の個数: 48

約数和(自身を含む): 47279232

約数和(自身を除く): 30457572

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 491, 571, 982, 1142, 1473, 1713, 1964, 2284, 2455, 2855, 2946, 3426, 4910, 5710, 5892, 6852, 7365, 8565, 9820, 11420, 14730, 17130, 29460, 34260, 280361, 560722, 841083, 1121444, 1401805, 1682166, 2803610, 3364332, 4205415, 5607220, 8410830, 16821660]

約数ペア:

[(1, 16821660), (2, 8410830), (3, 5607220), (4, 4205415), (5, 3364332), (6, 2803610), (10, 1682166), (12, 1401805), (15, 1121444), (20, 841083), (30, 560722), (60, 280361), (491, 34260), (571, 29460), (982, 17130), (1142, 14730), (1473, 11420), (1713, 9820), (1964, 8565), (2284, 7365), (2455, 6852), (2855, 5892), (2946, 5710), (3426, 4910)]