2021212305

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{112571}}^1$

素因数の和:112611

約数の個数: 64

約数和(自身を含む): 4322764800

約数和(自身を除く): 2301552495

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 57, 63, 95, 105, 133, 135, 171, 189, 285, 315, 399, 513, 665, 855, 945, 1197, 1995, 2565, 3591, 5985, 17955, 112571, 337713, 562855, 787997, 1013139, 1688565, 2138849, 2363991, 3039417, 3939985, 5065695, 6416547, 7091973, 10694245, 11819955, 14971943, 15197085, 19249641, 21275919, 32082735, 35459865, 44915829, 57748923, 74859715, 96248205, 106379595, 134747487, 224579145, 288744615, 404242461, 673737435, 2021212305]

約数ペア:

[(1, 2021212305), (3, 673737435), (5, 404242461), (7, 288744615), (9, 224579145), (15, 134747487), (19, 106379595), (21, 96248205), (27, 74859715), (35, 57748923), (45, 44915829), (57, 35459865), (63, 32082735), (95, 21275919), (105, 19249641), (133, 15197085), (135, 14971943), (171, 11819955), (189, 10694245), (285, 7091973), (315, 6416547), (399, 5065695), (513, 3939985), (665, 3039417), (855, 2363991), (945, 2138849), (1197, 1688565), (1995, 1013139), (2565, 787997), (3591, 562855), (5985, 337713), (17955, 112571)]