20638548

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{81899}}^1$

素因数の和:81916

約数の個数: 36

約数和(自身を含む): 59623200

約数和(自身を除く): 38984652

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 81899, 163798, 245697, 327596, 491394, 573293, 737091, 982788, 1146586, 1474182, 1719879, 2293172, 2948364, 3439758, 5159637, 6879516, 10319274, 20638548]

約数ペア:

[(1, 20638548), (2, 10319274), (3, 6879516), (4, 5159637), (6, 3439758), (7, 2948364), (9, 2293172), (12, 1719879), (14, 1474182), (18, 1146586), (21, 982788), (28, 737091), (36, 573293), (42, 491394), (63, 327596), (84, 245697), (126, 163798), (252, 81899)]