19977816

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{227}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 53078400

約数和(自身を除く): 33100584

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 193, 227, 228, 386, 454, 456, 579, 681, 772, 908, 1158, 1362, 1544, 1816, 2316, 2724, 3667, 4313, 4632, 5448, 7334, 8626, 11001, 12939, 14668, 17252, 22002, 25878, 29336, 34504, 43811, 44004, 51756, 87622, 88008, 103512, 131433, 175244, 262866, 350488, 525732, 832409, 1051464, 1664818, 2497227, 3329636, 4994454, 6659272, 9988908, 19977816]

約数ペア:

[(1, 19977816), (2, 9988908), (3, 6659272), (4, 4994454), (6, 3329636), (8, 2497227), (12, 1664818), (19, 1051464), (24, 832409), (38, 525732), (57, 350488), (76, 262866), (114, 175244), (152, 131433), (193, 103512), (227, 88008), (228, 87622), (386, 51756), (454, 44004), (456, 43811), (579, 34504), (681, 29336), (772, 25878), (908, 22002), (1158, 17252), (1362, 14668), (1544, 12939), (1816, 11001), (2316, 8626), (2724, 7334), (3667, 5448), (4313, 4632)]