19866885

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{419}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 33264000

約数和(自身を除く): 13397115

約数列:

[1, 3, 5, 15, 29, 87, 109, 145, 327, 419, 435, 545, 1257, 1635, 2095, 3161, 6285, 9483, 12151, 15805, 36453, 45671, 47415, 60755, 137013, 182265, 228355, 685065, 1324459, 3973377, 6622295, 19866885]

約数ペア:

[(1, 19866885), (3, 6622295), (5, 3973377), (15, 1324459), (29, 685065), (87, 228355), (109, 182265), (145, 137013), (327, 60755), (419, 47415), (435, 45671), (545, 36453), (1257, 15805), (1635, 12151), (2095, 9483), (3161, 6285)]