19948929

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1$

素因数の和:127

約数の個数: 72

約数和(自身を含む): 37050912

約数和(自身を除く): 17101983

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 49, 73, 77, 91, 143, 147, 169, 219, 231, 273, 429, 507, 511, 539, 637, 803, 949, 1001, 1183, 1533, 1617, 1859, 1911, 2409, 2847, 3003, 3549, 3577, 5577, 5621, 6643, 7007, 8281, 10439, 10731, 12337, 13013, 16863, 19929, 21021, 24843, 31317, 37011, 39039, 39347, 46501, 73073, 86359, 91091, 118041, 135707, 139503, 219219, 259077, 273273, 407121, 511511, 604513, 949949, 1534533, 1813539, 2849847, 6649643, 19948929]

約数ペア:

[(1, 19948929), (3, 6649643), (7, 2849847), (11, 1813539), (13, 1534533), (21, 949949), (33, 604513), (39, 511511), (49, 407121), (73, 273273), (77, 259077), (91, 219219), (143, 139503), (147, 135707), (169, 118041), (219, 91091), (231, 86359), (273, 73073), (429, 46501), (507, 39347), (511, 39039), (539, 37011), (637, 31317), (803, 24843), (949, 21021), (1001, 19929), (1183, 16863), (1533, 13013), (1617, 12337), (1859, 10731), (1911, 10439), (2409, 8281), (2847, 7007), (3003, 6643), (3549, 5621), (3577, 5577)]