19917468

素因数分解:

$2^2\times 3^3\times {\mathrm{223}}^1\times {\mathrm{827}}^1$

素因数の和:1063

約数の個数: 48

約数和(自身を含む): 51932160

約数和(自身を除く): 32014692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 223, 446, 669, 827, 892, 1338, 1654, 2007, 2481, 2676, 3308, 4014, 4962, 6021, 7443, 8028, 9924, 12042, 14886, 22329, 24084, 29772, 44658, 89316, 184421, 368842, 553263, 737684, 1106526, 1659789, 2213052, 3319578, 4979367, 6639156, 9958734, 19917468]

約数ペア:

[(1, 19917468), (2, 9958734), (3, 6639156), (4, 4979367), (6, 3319578), (9, 2213052), (12, 1659789), (18, 1106526), (27, 737684), (36, 553263), (54, 368842), (108, 184421), (223, 89316), (446, 44658), (669, 29772), (827, 24084), (892, 22329), (1338, 14886), (1654, 12042), (2007, 9924), (2481, 8028), (2676, 7443), (3308, 6021), (4014, 4962)]