28758303

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 50319360

約数和(自身を除く): 21561057

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 89, 161, 207, 223, 267, 483, 623, 669, 801, 1449, 1561, 1869, 2007, 2047, 4683, 5129, 5607, 6141, 14049, 14329, 15387, 18423, 19847, 35903, 42987, 46161, 59541, 107709, 128961, 138929, 178623, 323127, 416787, 456481, 1250361, 1369443, 3195367, 4108329, 9586101, 28758303]

約数ペア:

[(1, 28758303), (3, 9586101), (7, 4108329), (9, 3195367), (21, 1369443), (23, 1250361), (63, 456481), (69, 416787), (89, 323127), (161, 178623), (207, 138929), (223, 128961), (267, 107709), (483, 59541), (623, 46161), (669, 42987), (801, 35903), (1449, 19847), (1561, 18423), (1869, 15387), (2007, 14329), (2047, 14049), (4683, 6141), (5129, 5607)]