21330078

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{337}}^1$

素因数の和:497

約数の個数: 64

約数和(自身を含む): 53733888

約数和(自身を除く): 32403810

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 137, 154, 231, 274, 337, 411, 462, 674, 822, 959, 1011, 1507, 1918, 2022, 2359, 2877, 3014, 3707, 4521, 4718, 5754, 7077, 7414, 9042, 10549, 11121, 14154, 21098, 22242, 25949, 31647, 46169, 51898, 63294, 77847, 92338, 138507, 155694, 277014, 323183, 507859, 646366, 969549, 1015718, 1523577, 1939098, 3047154, 3555013, 7110026, 10665039, 21330078]

約数ペア:

[(1, 21330078), (2, 10665039), (3, 7110026), (6, 3555013), (7, 3047154), (11, 1939098), (14, 1523577), (21, 1015718), (22, 969549), (33, 646366), (42, 507859), (66, 323183), (77, 277014), (137, 155694), (154, 138507), (231, 92338), (274, 77847), (337, 63294), (411, 51898), (462, 46169), (674, 31647), (822, 25949), (959, 22242), (1011, 21098), (1507, 14154), (1918, 11121), (2022, 10549), (2359, 9042), (2877, 7414), (3014, 7077), (3707, 5754), (4521, 4718)]