28704105

素因数分解:

$3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1427}}^1$

素因数の和:1590

約数の個数: 32

約数和(自身を含む): 51408000

約数和(自身を除く): 22703895

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 149, 447, 745, 1341, 1427, 2235, 4023, 4281, 6705, 7135, 12843, 20115, 21405, 38529, 64215, 192645, 212623, 637869, 1063115, 1913607, 3189345, 5740821, 9568035, 28704105]

約数ペア:

[(1, 28704105), (3, 9568035), (5, 5740821), (9, 3189345), (15, 1913607), (27, 1063115), (45, 637869), (135, 212623), (149, 192645), (447, 64215), (745, 38529), (1341, 21405), (1427, 20115), (2235, 12843), (4023, 7135), (4281, 6705)]