21185160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{3331}}^1$

素因数の和:3398

約数の個数: 64

約数和(自身を含む): 64774080

約数和(自身を除く): 43588920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 106, 120, 159, 212, 265, 318, 424, 530, 636, 795, 1060, 1272, 1590, 2120, 3180, 3331, 6360, 6662, 9993, 13324, 16655, 19986, 26648, 33310, 39972, 49965, 66620, 79944, 99930, 133240, 176543, 199860, 353086, 399720, 529629, 706172, 882715, 1059258, 1412344, 1765430, 2118516, 2648145, 3530860, 4237032, 5296290, 7061720, 10592580, 21185160]

約数ペア:

[(1, 21185160), (2, 10592580), (3, 7061720), (4, 5296290), (5, 4237032), (6, 3530860), (8, 2648145), (10, 2118516), (12, 1765430), (15, 1412344), (20, 1059258), (24, 882715), (30, 706172), (40, 529629), (53, 399720), (60, 353086), (106, 199860), (120, 176543), (159, 133240), (212, 99930), (265, 79944), (318, 66620), (424, 49965), (530, 39972), (636, 33310), (795, 26648), (1060, 19986), (1272, 16655), (1590, 13324), (2120, 9993), (3180, 6662), (3331, 6360)]