21000750148

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{110023}}^1$

素因数の和:110452

約数の個数: 48

約数和(自身を含む): 44583485184

約数和(自身を除く): 23582735036

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 401, 476, 802, 1604, 2807, 5614, 6817, 11228, 13634, 27268, 47719, 95438, 110023, 190876, 220046, 440092, 770161, 1540322, 1870391, 3080644, 3740782, 7481564, 13092737, 26185474, 44119223, 52370948, 88238446, 176476892, 308834561, 617669122, 750026791, 1235338244, 1500053582, 3000107164, 5250187537, 10500375074, 21000750148]

約数ペア:

[(1, 21000750148), (2, 10500375074), (4, 5250187537), (7, 3000107164), (14, 1500053582), (17, 1235338244), (28, 750026791), (34, 617669122), (68, 308834561), (119, 176476892), (238, 88238446), (401, 52370948), (476, 44119223), (802, 26185474), (1604, 13092737), (2807, 7481564), (5614, 3740782), (6817, 3080644), (11228, 1870391), (13634, 1540322), (27268, 770161), (47719, 440092), (95438, 220046), (110023, 190876)]