21543420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21121}}^1$

素因数の和:21150

約数の個数: 48

約数和(自身を含む): 63872928

約数和(自身を除く): 42329508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21121, 42242, 63363, 84484, 105605, 126726, 211210, 253452, 316815, 359057, 422420, 633630, 718114, 1077171, 1267260, 1436228, 1795285, 2154342, 3590570, 4308684, 5385855, 7181140, 10771710, 21543420]

約数ペア:

[(1, 21543420), (2, 10771710), (3, 7181140), (4, 5385855), (5, 4308684), (6, 3590570), (10, 2154342), (12, 1795285), (15, 1436228), (17, 1267260), (20, 1077171), (30, 718114), (34, 633630), (51, 422420), (60, 359057), (68, 316815), (85, 253452), (102, 211210), (170, 126726), (204, 105605), (255, 84484), (340, 63363), (510, 42242), (1020, 21121)]