21726840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{547}}^1$

素因数の和:892

約数の個数: 64

約数和(自身を含む): 65496960

約数和(自身を除く): 43770120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 331, 547, 662, 993, 1094, 1324, 1641, 1655, 1986, 2188, 2648, 2735, 3282, 3310, 3972, 4376, 4965, 5470, 6564, 6620, 7944, 8205, 9930, 10940, 13128, 13240, 16410, 19860, 21880, 32820, 39720, 65640, 181057, 362114, 543171, 724228, 905285, 1086342, 1448456, 1810570, 2172684, 2715855, 3621140, 4345368, 5431710, 7242280, 10863420, 21726840]

約数ペア:

[(1, 21726840), (2, 10863420), (3, 7242280), (4, 5431710), (5, 4345368), (6, 3621140), (8, 2715855), (10, 2172684), (12, 1810570), (15, 1448456), (20, 1086342), (24, 905285), (30, 724228), (40, 543171), (60, 362114), (120, 181057), (331, 65640), (547, 39720), (662, 32820), (993, 21880), (1094, 19860), (1324, 16410), (1641, 13240), (1655, 13128), (1986, 10940), (2188, 9930), (2648, 8205), (2735, 7944), (3282, 6620), (3310, 6564), (3972, 5470), (4376, 4965)]