20803852

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 19838708

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 71, 124, 139, 142, 278, 284, 527, 556, 1054, 1207, 2108, 2201, 2363, 2414, 4309, 4402, 4726, 4828, 8618, 8804, 9452, 9869, 17236, 19738, 37417, 39476, 73253, 74834, 146506, 149668, 167773, 293012, 305939, 335546, 611878, 671092, 1223756, 5200963, 10401926, 20803852]

約数ペア:

[(1, 20803852), (2, 10401926), (4, 5200963), (17, 1223756), (31, 671092), (34, 611878), (62, 335546), (68, 305939), (71, 293012), (124, 167773), (139, 149668), (142, 146506), (278, 74834), (284, 73253), (527, 39476), (556, 37417), (1054, 19738), (1207, 17236), (2108, 9869), (2201, 9452), (2363, 8804), (2414, 8618), (4309, 4828), (4402, 4726)]