21313380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{751}}^1$

素因数の和:817

約数の個数: 96

約数和(自身を含む): 66705408

約数和(自身を除く): 45392028

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 43, 44, 55, 60, 66, 86, 110, 129, 132, 165, 172, 215, 220, 258, 330, 430, 473, 516, 645, 660, 751, 860, 946, 1290, 1419, 1502, 1892, 2253, 2365, 2580, 2838, 3004, 3755, 4506, 4730, 5676, 7095, 7510, 8261, 9012, 9460, 11265, 14190, 15020, 16522, 22530, 24783, 28380, 32293, 33044, 41305, 45060, 49566, 64586, 82610, 96879, 99132, 123915, 129172, 161465, 165220, 193758, 247830, 322930, 355223, 387516, 484395, 495660, 645860, 710446, 968790, 1065669, 1420892, 1776115, 1937580, 2131338, 3552230, 4262676, 5328345, 7104460, 10656690, 21313380]

約数ペア:

[(1, 21313380), (2, 10656690), (3, 7104460), (4, 5328345), (5, 4262676), (6, 3552230), (10, 2131338), (11, 1937580), (12, 1776115), (15, 1420892), (20, 1065669), (22, 968790), (30, 710446), (33, 645860), (43, 495660), (44, 484395), (55, 387516), (60, 355223), (66, 322930), (86, 247830), (110, 193758), (129, 165220), (132, 161465), (165, 129172), (172, 123915), (215, 99132), (220, 96879), (258, 82610), (330, 64586), (430, 49566), (473, 45060), (516, 41305), (645, 33044), (660, 32293), (751, 28380), (860, 24783), (946, 22530), (1290, 16522), (1419, 15020), (1502, 14190), (1892, 11265), (2253, 9460), (2365, 9012), (2580, 8261), (2838, 7510), (3004, 7095), (3755, 5676), (4506, 4730)]