18438512

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{463}}^1$

素因数の和:621

約数の個数: 40

約数和(自身を含む): 37973760

約数和(自身を除く): 19535248

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 131, 152, 262, 304, 463, 524, 926, 1048, 1852, 2096, 2489, 3704, 4978, 7408, 8797, 9956, 17594, 19912, 35188, 39824, 60653, 70376, 121306, 140752, 242612, 485224, 970448, 1152407, 2304814, 4609628, 9219256, 18438512]

約数ペア:

[(1, 18438512), (2, 9219256), (4, 4609628), (8, 2304814), (16, 1152407), (19, 970448), (38, 485224), (76, 242612), (131, 140752), (152, 121306), (262, 70376), (304, 60653), (463, 39824), (524, 35188), (926, 19912), (1048, 17594), (1852, 9956), (2096, 8797), (2489, 7408), (3704, 4978)]