18581164

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{659}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 21335636

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 53, 76, 106, 133, 212, 266, 371, 532, 659, 742, 1007, 1318, 1484, 2014, 2636, 4028, 4613, 7049, 9226, 12521, 14098, 18452, 25042, 28196, 34927, 50084, 69854, 87647, 139708, 175294, 244489, 350588, 488978, 663613, 977956, 1327226, 2654452, 4645291, 9290582, 18581164]

約数ペア:

[(1, 18581164), (2, 9290582), (4, 4645291), (7, 2654452), (14, 1327226), (19, 977956), (28, 663613), (38, 488978), (53, 350588), (76, 244489), (106, 175294), (133, 139708), (212, 87647), (266, 69854), (371, 50084), (532, 34927), (659, 28196), (742, 25042), (1007, 18452), (1318, 14098), (1484, 12521), (2014, 9226), (2636, 7049), (4028, 4613)]