19661328

素因数分解:

$2^4\times 3^2\times {\mathrm{136537}}^1$

素因数の和:136551

約数の個数: 30

約数和(自身を含む): 55024814

約数和(自身を除く): 35363486

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 136537, 273074, 409611, 546148, 819222, 1092296, 1228833, 1638444, 2184592, 2457666, 3276888, 4915332, 6553776, 9830664, 19661328]

約数ペア:

[(1, 19661328), (2, 9830664), (3, 6553776), (4, 4915332), (6, 3276888), (8, 2457666), (9, 2184592), (12, 1638444), (16, 1228833), (18, 1092296), (24, 819222), (36, 546148), (48, 409611), (72, 273074), (144, 136537)]