21291363945

素因数分解:

$3^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1\times {\mathrm{2287}}^1$

素因数の和:2612

約数の個数: 80

約数和(自身を含む): 38696706048

約数和(自身を除く): 17405342103

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 127, 135, 181, 381, 405, 543, 635, 905, 1143, 1629, 1905, 2287, 2715, 3429, 4887, 5715, 6861, 8145, 10287, 11435, 14661, 17145, 20583, 22987, 24435, 34305, 51435, 61749, 68961, 73305, 102915, 114935, 185247, 206883, 290449, 308745, 344805, 413947, 620649, 871347, 926235, 1034415, 1241841, 1452245, 1861947, 2069735, 2614041, 3103245, 3725523, 4356735, 6209205, 7842123, 9309735, 11176569, 13070205, 18627615, 23526369, 33529707, 39210615, 52571269, 55882845, 117631845, 157713807, 167648535, 262856345, 473141421, 788569035, 1419424263, 2365707105, 4258272789, 7097121315, 21291363945]

約数ペア:

[(1, 21291363945), (3, 7097121315), (5, 4258272789), (9, 2365707105), (15, 1419424263), (27, 788569035), (45, 473141421), (81, 262856345), (127, 167648535), (135, 157713807), (181, 117631845), (381, 55882845), (405, 52571269), (543, 39210615), (635, 33529707), (905, 23526369), (1143, 18627615), (1629, 13070205), (1905, 11176569), (2287, 9309735), (2715, 7842123), (3429, 6209205), (4887, 4356735), (5715, 3725523), (6861, 3103245), (8145, 2614041), (10287, 2069735), (11435, 1861947), (14661, 1452245), (17145, 1241841), (20583, 1034415), (22987, 926235), (24435, 871347), (34305, 620649), (51435, 413947), (61749, 344805), (68961, 308745), (73305, 290449), (102915, 206883), (114935, 185247)]