21307590

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1489}}^1$

素因数の和:1558

約数の個数: 64

約数和(自身を含む): 57931200

約数和(自身を除く): 36623610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 53, 54, 90, 106, 135, 159, 265, 270, 318, 477, 530, 795, 954, 1431, 1489, 1590, 2385, 2862, 2978, 4467, 4770, 7155, 7445, 8934, 13401, 14310, 14890, 22335, 26802, 40203, 44670, 67005, 78917, 80406, 134010, 157834, 201015, 236751, 394585, 402030, 473502, 710253, 789170, 1183755, 1420506, 2130759, 2367510, 3551265, 4261518, 7102530, 10653795, 21307590]

約数ペア:

[(1, 21307590), (2, 10653795), (3, 7102530), (5, 4261518), (6, 3551265), (9, 2367510), (10, 2130759), (15, 1420506), (18, 1183755), (27, 789170), (30, 710253), (45, 473502), (53, 402030), (54, 394585), (90, 236751), (106, 201015), (135, 157834), (159, 134010), (265, 80406), (270, 78917), (318, 67005), (477, 44670), (530, 40203), (795, 26802), (954, 22335), (1431, 14890), (1489, 14310), (1590, 13401), (2385, 8934), (2862, 7445), (2978, 7155), (4467, 4770)]