20463765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2467}}^1$

素因数の和:2561

約数の個数: 32

約数和(自身を含む): 37908480

約数和(自身を除く): 17444715

約数列:

[1, 3, 5, 7, 15, 21, 35, 79, 105, 237, 395, 553, 1185, 1659, 2467, 2765, 7401, 8295, 12335, 17269, 37005, 51807, 86345, 194893, 259035, 584679, 974465, 1364251, 2923395, 4092753, 6821255, 20463765]

約数ペア:

[(1, 20463765), (3, 6821255), (5, 4092753), (7, 2923395), (15, 1364251), (21, 974465), (35, 584679), (79, 259035), (105, 194893), (237, 86345), (395, 51807), (553, 37005), (1185, 17269), (1659, 12335), (2467, 8295), (2765, 7401)]