19818164

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{179}}^1\times {\mathrm{311}}^1$

素因数の和:583

約数の個数: 24

約数和(自身を含む): 35380800

約数和(自身を除く): 15562636

約数列:

[1, 2, 4, 89, 178, 179, 311, 356, 358, 622, 716, 1244, 15931, 27679, 31862, 55358, 55669, 63724, 110716, 111338, 222676, 4954541, 9909082, 19818164]

約数ペア:

[(1, 19818164), (2, 9909082), (4, 4954541), (89, 222676), (178, 111338), (179, 110716), (311, 63724), (356, 55669), (358, 55358), (622, 31862), (716, 27679), (1244, 15931)]