28891335

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{331}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 52875648

約数和(自身を除く): 23984313

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 331, 345, 529, 759, 993, 1265, 1587, 1655, 2645, 3641, 3795, 4965, 5819, 7613, 7935, 10923, 17457, 18205, 22839, 29095, 38065, 54615, 83743, 87285, 114195, 175099, 251229, 418715, 525297, 875495, 1256145, 1926089, 2626485, 5778267, 9630445, 28891335]

約数ペア:

[(1, 28891335), (3, 9630445), (5, 5778267), (11, 2626485), (15, 1926089), (23, 1256145), (33, 875495), (55, 525297), (69, 418715), (115, 251229), (165, 175099), (253, 114195), (331, 87285), (345, 83743), (529, 54615), (759, 38065), (993, 29095), (1265, 22839), (1587, 18205), (1655, 17457), (2645, 10923), (3641, 7935), (3795, 7613), (4965, 5819)]