21117690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:364

約数の個数: 96

約数和(自身を含む): 60854976

約数和(自身を除く): 39737286

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 83, 90, 99, 110, 165, 166, 198, 249, 257, 330, 415, 495, 498, 514, 747, 771, 830, 913, 990, 1245, 1285, 1494, 1542, 1826, 2313, 2490, 2570, 2739, 2827, 3735, 3855, 4565, 4626, 5478, 5654, 7470, 7710, 8217, 8481, 9130, 11565, 13695, 14135, 16434, 16962, 21331, 23130, 25443, 27390, 28270, 41085, 42405, 42662, 50886, 63993, 82170, 84810, 106655, 127215, 127986, 191979, 213310, 234641, 254430, 319965, 383958, 469282, 639930, 703923, 959895, 1173205, 1407846, 1919790, 2111769, 2346410, 3519615, 4223538, 7039230, 10558845, 21117690]

約数ペア:

[(1, 21117690), (2, 10558845), (3, 7039230), (5, 4223538), (6, 3519615), (9, 2346410), (10, 2111769), (11, 1919790), (15, 1407846), (18, 1173205), (22, 959895), (30, 703923), (33, 639930), (45, 469282), (55, 383958), (66, 319965), (83, 254430), (90, 234641), (99, 213310), (110, 191979), (165, 127986), (166, 127215), (198, 106655), (249, 84810), (257, 82170), (330, 63993), (415, 50886), (495, 42662), (498, 42405), (514, 41085), (747, 28270), (771, 27390), (830, 25443), (913, 23130), (990, 21331), (1245, 16962), (1285, 16434), (1494, 14135), (1542, 13695), (1826, 11565), (2313, 9130), (2490, 8481), (2570, 8217), (2739, 7710), (2827, 7470), (3735, 5654), (3855, 5478), (4565, 4626)]