21084720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87853}}^1$

素因数の和:87869

約数の個数: 40

約数和(自身を含む): 65363376

約数和(自身を除く): 44278656

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87853, 175706, 263559, 351412, 439265, 527118, 702824, 878530, 1054236, 1317795, 1405648, 1757060, 2108472, 2635590, 3514120, 4216944, 5271180, 7028240, 10542360, 21084720]

約数ペア:

[(1, 21084720), (2, 10542360), (3, 7028240), (4, 5271180), (5, 4216944), (6, 3514120), (8, 2635590), (10, 2108472), (12, 1757060), (15, 1405648), (16, 1317795), (20, 1054236), (24, 878530), (30, 702824), (40, 527118), (48, 439265), (60, 351412), (80, 263559), (120, 175706), (240, 87853)]