19003504

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{433}}^1$

素因数の和:665

約数の個数: 40

約数和(自身を含む): 39931472

約数和(自身を除く): 20927968

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 211, 422, 433, 844, 866, 1688, 1732, 2743, 3376, 3464, 5486, 5629, 6928, 10972, 11258, 21944, 22516, 43888, 45032, 90064, 91363, 182726, 365452, 730904, 1187719, 1461808, 2375438, 4750876, 9501752, 19003504]

約数ペア:

[(1, 19003504), (2, 9501752), (4, 4750876), (8, 2375438), (13, 1461808), (16, 1187719), (26, 730904), (52, 365452), (104, 182726), (208, 91363), (211, 90064), (422, 45032), (433, 43888), (844, 22516), (866, 21944), (1688, 11258), (1732, 10972), (2743, 6928), (3376, 5629), (3464, 5486)]