21281050

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1483}}^1$

素因数の和:1543

約数の個数: 48

約数和(自身を含む): 46372032

約数和(自身を除く): 25090982

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 41, 50, 70, 82, 175, 205, 287, 350, 410, 574, 1025, 1435, 1483, 2050, 2870, 2966, 7175, 7415, 10381, 14350, 14830, 20762, 37075, 51905, 60803, 74150, 103810, 121606, 259525, 304015, 425621, 519050, 608030, 851242, 1520075, 2128105, 3040150, 4256210, 10640525, 21281050]

約数ペア:

[(1, 21281050), (2, 10640525), (5, 4256210), (7, 3040150), (10, 2128105), (14, 1520075), (25, 851242), (35, 608030), (41, 519050), (50, 425621), (70, 304015), (82, 259525), (175, 121606), (205, 103810), (287, 74150), (350, 60803), (410, 51905), (574, 37075), (1025, 20762), (1435, 14830), (1483, 14350), (2050, 10381), (2870, 7415), (2966, 7175)]