20421492

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{18701}}^1$

素因数の和:18728

約数の個数: 48

約数和(自身を含む): 58649472

約数和(自身を除く): 38227980

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 18701, 37402, 56103, 74804, 112206, 130907, 224412, 243113, 261814, 392721, 486226, 523628, 729339, 785442, 972452, 1458678, 1570884, 1701791, 2917356, 3403582, 5105373, 6807164, 10210746, 20421492]

約数ペア:

[(1, 20421492), (2, 10210746), (3, 6807164), (4, 5105373), (6, 3403582), (7, 2917356), (12, 1701791), (13, 1570884), (14, 1458678), (21, 972452), (26, 785442), (28, 729339), (39, 523628), (42, 486226), (52, 392721), (78, 261814), (84, 243113), (91, 224412), (156, 130907), (182, 112206), (273, 74804), (364, 56103), (546, 37402), (1092, 18701)]