19944704

素因数分解:

$2^8\times {\mathrm{13}}^2\times {\mathrm{461}}^1$

素因数の和:503

約数の個数: 54

約数和(自身を含む): 43203006

約数和(自身を除く): 23258302

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 208, 256, 338, 416, 461, 676, 832, 922, 1352, 1664, 1844, 2704, 3328, 3688, 5408, 5993, 7376, 10816, 11986, 14752, 21632, 23972, 29504, 43264, 47944, 59008, 77909, 95888, 118016, 155818, 191776, 311636, 383552, 623272, 767104, 1246544, 1534208, 2493088, 4986176, 9972352, 19944704]

約数ペア:

[(1, 19944704), (2, 9972352), (4, 4986176), (8, 2493088), (13, 1534208), (16, 1246544), (26, 767104), (32, 623272), (52, 383552), (64, 311636), (104, 191776), (128, 155818), (169, 118016), (208, 95888), (256, 77909), (338, 59008), (416, 47944), (461, 43264), (676, 29504), (832, 23972), (922, 21632), (1352, 14752), (1664, 11986), (1844, 10816), (2704, 7376), (3328, 5993), (3688, 5408)]