19431952

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{359}}^1$

素因数の和:583

約数の個数: 40

約数和(自身を含む): 40176000

約数和(自身を除く): 20744048

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 199, 272, 359, 398, 718, 796, 1436, 1592, 2872, 3184, 3383, 5744, 6103, 6766, 12206, 13532, 24412, 27064, 48824, 54128, 71441, 97648, 142882, 285764, 571528, 1143056, 1214497, 2428994, 4857988, 9715976, 19431952]

約数ペア:

[(1, 19431952), (2, 9715976), (4, 4857988), (8, 2428994), (16, 1214497), (17, 1143056), (34, 571528), (68, 285764), (136, 142882), (199, 97648), (272, 71441), (359, 54128), (398, 48824), (718, 27064), (796, 24412), (1436, 13532), (1592, 12206), (2872, 6766), (3184, 6103), (3383, 5744)]