21178746

素因数分解:

$2^1\times 3^4\times {\mathrm{239}}^1\times {\mathrm{547}}^1$

素因数の和:800

約数の個数: 40

約数和(自身を含む): 47741760

約数和(自身を除く): 26563014

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 239, 478, 547, 717, 1094, 1434, 1641, 2151, 3282, 4302, 4923, 6453, 9846, 12906, 14769, 19359, 29538, 38718, 44307, 88614, 130733, 261466, 392199, 784398, 1176597, 2353194, 3529791, 7059582, 10589373, 21178746]

約数ペア:

[(1, 21178746), (2, 10589373), (3, 7059582), (6, 3529791), (9, 2353194), (18, 1176597), (27, 784398), (54, 392199), (81, 261466), (162, 130733), (239, 88614), (478, 44307), (547, 38718), (717, 29538), (1094, 19359), (1434, 14769), (1641, 12906), (2151, 9846), (3282, 6453), (4302, 4923)]