19649538

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{479}}^1$

素因数の和:583

約数の個数: 48

約数和(自身を含む): 44478720

約数和(自身を除く): 24829182

約数列:

[1, 2, 3, 6, 9, 18, 43, 53, 86, 106, 129, 159, 258, 318, 387, 477, 479, 774, 954, 958, 1437, 2279, 2874, 4311, 4558, 6837, 8622, 13674, 20511, 20597, 25387, 41022, 41194, 50774, 61791, 76161, 123582, 152322, 185373, 228483, 370746, 456966, 1091641, 2183282, 3274923, 6549846, 9824769, 19649538]

約数ペア:

[(1, 19649538), (2, 9824769), (3, 6549846), (6, 3274923), (9, 2183282), (18, 1091641), (43, 456966), (53, 370746), (86, 228483), (106, 185373), (129, 152322), (159, 123582), (258, 76161), (318, 61791), (387, 50774), (477, 41194), (479, 41022), (774, 25387), (954, 20597), (958, 20511), (1437, 13674), (2279, 8622), (2874, 6837), (4311, 4558)]