21549870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1607}}^1$

素因数の和:1769

約数の個数: 48

約数和(自身を含む): 56440800

約数和(自身を除く): 34890930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 149, 298, 447, 745, 894, 1341, 1490, 1607, 2235, 2682, 3214, 4470, 4821, 6705, 8035, 9642, 13410, 14463, 16070, 24105, 28926, 48210, 72315, 144630, 239443, 478886, 718329, 1197215, 1436658, 2154987, 2394430, 3591645, 4309974, 7183290, 10774935, 21549870]

約数ペア:

[(1, 21549870), (2, 10774935), (3, 7183290), (5, 4309974), (6, 3591645), (9, 2394430), (10, 2154987), (15, 1436658), (18, 1197215), (30, 718329), (45, 478886), (90, 239443), (149, 144630), (298, 72315), (447, 48210), (745, 28926), (894, 24105), (1341, 16070), (1490, 14463), (1607, 13410), (2235, 9642), (2682, 8035), (3214, 6705), (4470, 4821)]