21563575456

素因数分解:

$2^5\times {\mathrm{19}}^2\times {\mathrm{181}}^1\times {\mathrm{10313}}^1$

素因数の和:10542

約数の個数: 72

約数和(自身を含む): 45057183444

約数和(自身を除く): 23493607988

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 181, 304, 361, 362, 608, 722, 724, 1444, 1448, 2888, 2896, 3439, 5776, 5792, 6878, 10313, 11552, 13756, 20626, 27512, 41252, 55024, 65341, 82504, 110048, 130682, 165008, 195947, 261364, 330016, 391894, 522728, 783788, 1045456, 1567576, 1866653, 2090912, 3135152, 3722993, 3733306, 6270304, 7445986, 7466612, 14891972, 14933224, 29783944, 29866448, 35466407, 59567888, 59732896, 70932814, 119135776, 141865628, 283731256, 567462512, 673861733, 1134925024, 1347723466, 2695446932, 5390893864, 10781787728, 21563575456]

約数ペア:

[(1, 21563575456), (2, 10781787728), (4, 5390893864), (8, 2695446932), (16, 1347723466), (19, 1134925024), (32, 673861733), (38, 567462512), (76, 283731256), (152, 141865628), (181, 119135776), (304, 70932814), (361, 59732896), (362, 59567888), (608, 35466407), (722, 29866448), (724, 29783944), (1444, 14933224), (1448, 14891972), (2888, 7466612), (2896, 7445986), (3439, 6270304), (5776, 3733306), (5792, 3722993), (6878, 3135152), (10313, 2090912), (11552, 1866653), (13756, 1567576), (20626, 1045456), (27512, 783788), (41252, 522728), (55024, 391894), (65341, 330016), (82504, 261364), (110048, 195947), (130682, 165008)]