19497933

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 37346400

約数和(自身を除く): 17848467

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 49, 57, 63, 91, 117, 133, 147, 171, 179, 247, 273, 399, 441, 537, 637, 741, 819, 931, 1197, 1253, 1611, 1729, 1911, 2223, 2327, 2793, 3401, 3759, 5187, 5733, 6981, 8379, 8771, 10203, 11277, 12103, 15561, 16289, 20943, 23807, 26313, 30609, 36309, 44213, 48867, 71421, 78939, 108927, 114023, 132639, 146601, 166649, 214263, 309491, 342069, 397917, 499947, 928473, 1026207, 1499841, 2166437, 2785419, 6499311, 19497933]

約数ペア:

[(1, 19497933), (3, 6499311), (7, 2785419), (9, 2166437), (13, 1499841), (19, 1026207), (21, 928473), (39, 499947), (49, 397917), (57, 342069), (63, 309491), (91, 214263), (117, 166649), (133, 146601), (147, 132639), (171, 114023), (179, 108927), (247, 78939), (273, 71421), (399, 48867), (441, 44213), (537, 36309), (637, 30609), (741, 26313), (819, 23807), (931, 20943), (1197, 16289), (1253, 15561), (1611, 12103), (1729, 11277), (1911, 10203), (2223, 8771), (2327, 8379), (2793, 6981), (3401, 5733), (3759, 5187)]