21654810

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{577}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 58262400

約数和(自身を除く): 36607590

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 139, 270, 278, 417, 577, 695, 834, 1154, 1251, 1390, 1731, 2085, 2502, 2885, 3462, 3753, 4170, 5193, 5770, 6255, 7506, 8655, 10386, 12510, 15579, 17310, 18765, 25965, 31158, 37530, 51930, 77895, 80203, 155790, 160406, 240609, 401015, 481218, 721827, 802030, 1203045, 1443654, 2165481, 2406090, 3609135, 4330962, 7218270, 10827405, 21654810]

約数ペア:

[(1, 21654810), (2, 10827405), (3, 7218270), (5, 4330962), (6, 3609135), (9, 2406090), (10, 2165481), (15, 1443654), (18, 1203045), (27, 802030), (30, 721827), (45, 481218), (54, 401015), (90, 240609), (135, 160406), (139, 155790), (270, 80203), (278, 77895), (417, 51930), (577, 37530), (695, 31158), (834, 25965), (1154, 18765), (1251, 17310), (1390, 15579), (1731, 12510), (2085, 10386), (2502, 8655), (2885, 7506), (3462, 6255), (3753, 5770), (4170, 5193)]