19651472

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{509}}^1$

素因数の和:663

約数の個数: 40

約数和(自身を含む): 40473600

約数和(自身を除く): 20822128

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 127, 152, 254, 304, 508, 509, 1016, 1018, 2032, 2036, 2413, 4072, 4826, 8144, 9652, 9671, 19304, 19342, 38608, 38684, 64643, 77368, 129286, 154736, 258572, 517144, 1034288, 1228217, 2456434, 4912868, 9825736, 19651472]

約数ペア:

[(1, 19651472), (2, 9825736), (4, 4912868), (8, 2456434), (16, 1228217), (19, 1034288), (38, 517144), (76, 258572), (127, 154736), (152, 129286), (254, 77368), (304, 64643), (508, 38684), (509, 38608), (1016, 19342), (1018, 19304), (2032, 9671), (2036, 9652), (2413, 8144), (4072, 4826)]