20032551

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 36511488

約数和(自身を除く): 16478937

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 137, 211, 231, 411, 633, 693, 959, 1233, 1477, 1507, 1899, 2321, 2877, 4431, 4521, 6963, 8631, 10549, 13293, 13563, 16247, 20889, 28907, 31647, 48741, 86721, 94941, 146223, 202349, 260163, 317977, 607047, 953931, 1821141, 2225839, 2861793, 6677517, 20032551]

約数ペア:

[(1, 20032551), (3, 6677517), (7, 2861793), (9, 2225839), (11, 1821141), (21, 953931), (33, 607047), (63, 317977), (77, 260163), (99, 202349), (137, 146223), (211, 94941), (231, 86721), (411, 48741), (633, 31647), (693, 28907), (959, 20889), (1233, 16247), (1477, 13563), (1507, 13293), (1899, 10549), (2321, 8631), (2877, 6963), (4431, 4521)]