21071820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4561}}^1$

素因数の和:4591

約数の個数: 96

約数和(自身を含む): 73575936

約数和(自身を除く): 52504116

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4561, 4620, 9122, 13683, 18244, 22805, 27366, 31927, 45610, 50171, 54732, 63854, 68415, 91220, 95781, 100342, 127708, 136830, 150513, 159635, 191562, 200684, 250855, 273660, 301026, 319270, 351197, 383124, 478905, 501710, 602052, 638540, 702394, 752565, 957810, 1003420, 1053591, 1404788, 1505130, 1755985, 1915620, 2107182, 3010260, 3511970, 4214364, 5267955, 7023940, 10535910, 21071820]

約数ペア:

[(1, 21071820), (2, 10535910), (3, 7023940), (4, 5267955), (5, 4214364), (6, 3511970), (7, 3010260), (10, 2107182), (11, 1915620), (12, 1755985), (14, 1505130), (15, 1404788), (20, 1053591), (21, 1003420), (22, 957810), (28, 752565), (30, 702394), (33, 638540), (35, 602052), (42, 501710), (44, 478905), (55, 383124), (60, 351197), (66, 319270), (70, 301026), (77, 273660), (84, 250855), (105, 200684), (110, 191562), (132, 159635), (140, 150513), (154, 136830), (165, 127708), (210, 100342), (220, 95781), (231, 91220), (308, 68415), (330, 63854), (385, 54732), (420, 50171), (462, 45610), (660, 31927), (770, 27366), (924, 22805), (1155, 18244), (1540, 13683), (2310, 9122), (4561, 4620)]