201845889

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{991}}^1$

素因数の和:1118

約数の個数: 48

約数和(自身を含む): 345406464

約数和(自身を除く): 143560575

約数列:

[1, 3, 7, 9, 21, 53, 61, 63, 159, 183, 371, 427, 477, 549, 991, 1113, 1281, 2973, 3233, 3339, 3843, 6937, 8919, 9699, 20811, 22631, 29097, 52523, 60451, 62433, 67893, 157569, 181353, 203679, 367661, 423157, 472707, 544059, 1102983, 1269471, 3203903, 3308949, 3808413, 9611709, 22427321, 28835127, 67281963, 201845889]

約数ペア:

[(1, 201845889), (3, 67281963), (7, 28835127), (9, 22427321), (21, 9611709), (53, 3808413), (61, 3308949), (63, 3203903), (159, 1269471), (183, 1102983), (371, 544059), (427, 472707), (477, 423157), (549, 367661), (991, 203679), (1113, 181353), (1281, 157569), (2973, 67893), (3233, 62433), (3339, 60451), (3843, 52523), (6937, 29097), (8919, 22631), (9699, 20811)]