21682260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{739}}^1$

素因数の和:917

約数の個数: 72

約数和(自身を含む): 66262560

約数和(自身を除く): 44580300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 326, 489, 652, 739, 815, 978, 1467, 1478, 1630, 1956, 2217, 2445, 2934, 2956, 3260, 3695, 4434, 4890, 5868, 6651, 7335, 7390, 8868, 9780, 11085, 13302, 14670, 14780, 22170, 26604, 29340, 33255, 44340, 66510, 120457, 133020, 240914, 361371, 481828, 602285, 722742, 1084113, 1204570, 1445484, 1806855, 2168226, 2409140, 3613710, 4336452, 5420565, 7227420, 10841130, 21682260]

約数ペア:

[(1, 21682260), (2, 10841130), (3, 7227420), (4, 5420565), (5, 4336452), (6, 3613710), (9, 2409140), (10, 2168226), (12, 1806855), (15, 1445484), (18, 1204570), (20, 1084113), (30, 722742), (36, 602285), (45, 481828), (60, 361371), (90, 240914), (163, 133020), (180, 120457), (326, 66510), (489, 44340), (652, 33255), (739, 29340), (815, 26604), (978, 22170), (1467, 14780), (1478, 14670), (1630, 13302), (1956, 11085), (2217, 9780), (2445, 8868), (2934, 7390), (2956, 7335), (3260, 6651), (3695, 5868), (4434, 4890)]