21986028

素因数分解:

$2^2\times 3^2\times {\mathrm{401}}^1\times {\mathrm{1523}}^1$

素因数の和:1934

約数の個数: 36

約数和(自身を含む): 55750968

約数和(自身を除く): 33764940

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 401, 802, 1203, 1523, 1604, 2406, 3046, 3609, 4569, 4812, 6092, 7218, 9138, 13707, 14436, 18276, 27414, 54828, 610723, 1221446, 1832169, 2442892, 3664338, 5496507, 7328676, 10993014, 21986028]

約数ペア:

[(1, 21986028), (2, 10993014), (3, 7328676), (4, 5496507), (6, 3664338), (9, 2442892), (12, 1832169), (18, 1221446), (36, 610723), (401, 54828), (802, 27414), (1203, 18276), (1523, 14436), (1604, 13707), (2406, 9138), (3046, 7218), (3609, 6092), (4569, 4812)]