19357191

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 64

約数和(自身を含む): 35235840

約数和(自身を除く): 15878649

約数列:

[1, 3, 7, 9, 21, 23, 27, 61, 63, 69, 73, 161, 183, 189, 207, 219, 427, 483, 511, 549, 621, 657, 1281, 1403, 1449, 1533, 1647, 1679, 1971, 3843, 4209, 4347, 4453, 4599, 5037, 9821, 11529, 11753, 12627, 13359, 13797, 15111, 29463, 31171, 35259, 37881, 40077, 45333, 88389, 93513, 102419, 105777, 120231, 265167, 280539, 307257, 317331, 716933, 841617, 921771, 2150799, 2765313, 6452397, 19357191]

約数ペア:

[(1, 19357191), (3, 6452397), (7, 2765313), (9, 2150799), (21, 921771), (23, 841617), (27, 716933), (61, 317331), (63, 307257), (69, 280539), (73, 265167), (161, 120231), (183, 105777), (189, 102419), (207, 93513), (219, 88389), (427, 45333), (483, 40077), (511, 37881), (549, 35259), (621, 31171), (657, 29463), (1281, 15111), (1403, 13797), (1449, 13359), (1533, 12627), (1647, 11753), (1679, 11529), (1971, 9821), (3843, 5037), (4209, 4599), (4347, 4453)]