21513752

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6673}}^1$

素因数の和:6723

約数の個数: 32

約数和(自身を含む): 44849280

約数和(自身を除く): 23335528

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6673, 13346, 26692, 53384, 86749, 173498, 206863, 346996, 413726, 693992, 827452, 1654904, 2689219, 5378438, 10756876, 21513752]

約数ペア:

[(1, 21513752), (2, 10756876), (4, 5378438), (8, 2689219), (13, 1654904), (26, 827452), (31, 693992), (52, 413726), (62, 346996), (104, 206863), (124, 173498), (248, 86749), (403, 53384), (806, 26692), (1612, 13346), (3224, 6673)]