21195540

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39251}}^1$

素因数の和:39269

約数の個数: 48

約数和(自身を含む): 65943360

約数和(自身を除く): 44747820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39251, 78502, 117753, 157004, 196255, 235506, 353259, 392510, 471012, 588765, 706518, 785020, 1059777, 1177530, 1413036, 1766295, 2119554, 2355060, 3532590, 4239108, 5298885, 7065180, 10597770, 21195540]

約数ペア:

[(1, 21195540), (2, 10597770), (3, 7065180), (4, 5298885), (5, 4239108), (6, 3532590), (9, 2355060), (10, 2119554), (12, 1766295), (15, 1413036), (18, 1177530), (20, 1059777), (27, 785020), (30, 706518), (36, 588765), (45, 471012), (54, 392510), (60, 353259), (90, 235506), (108, 196255), (135, 157004), (180, 117753), (270, 78502), (540, 39251)]