21066540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{541}}^1$

素因数の和:623

約数の個数: 96

約数和(自身を含む): 65560320

約数和(自身を除く): 44493780

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 59, 60, 66, 110, 118, 132, 165, 177, 220, 236, 295, 330, 354, 541, 590, 649, 660, 708, 885, 1082, 1180, 1298, 1623, 1770, 1947, 2164, 2596, 2705, 3245, 3246, 3540, 3894, 5410, 5951, 6490, 6492, 7788, 8115, 9735, 10820, 11902, 12980, 16230, 17853, 19470, 23804, 29755, 31919, 32460, 35706, 38940, 59510, 63838, 71412, 89265, 95757, 119020, 127676, 159595, 178530, 191514, 319190, 351109, 357060, 383028, 478785, 638380, 702218, 957570, 1053327, 1404436, 1755545, 1915140, 2106654, 3511090, 4213308, 5266635, 7022180, 10533270, 21066540]

約数ペア:

[(1, 21066540), (2, 10533270), (3, 7022180), (4, 5266635), (5, 4213308), (6, 3511090), (10, 2106654), (11, 1915140), (12, 1755545), (15, 1404436), (20, 1053327), (22, 957570), (30, 702218), (33, 638380), (44, 478785), (55, 383028), (59, 357060), (60, 351109), (66, 319190), (110, 191514), (118, 178530), (132, 159595), (165, 127676), (177, 119020), (220, 95757), (236, 89265), (295, 71412), (330, 63838), (354, 59510), (541, 38940), (590, 35706), (649, 32460), (660, 31919), (708, 29755), (885, 23804), (1082, 19470), (1180, 17853), (1298, 16230), (1623, 12980), (1770, 11902), (1947, 10820), (2164, 9735), (2596, 8115), (2705, 7788), (3245, 6492), (3246, 6490), (3540, 5951), (3894, 5410)]