19977552

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{19819}}^1$

素因数の和:19840

約数の個数: 60

約数和(自身を含む): 63899680

約数和(自身を除く): 43922128

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008, 19819, 39638, 59457, 79276, 118914, 138733, 158552, 178371, 237828, 277466, 317104, 356742, 416199, 475656, 554932, 713484, 832398, 951312, 1109864, 1248597, 1426968, 1664796, 2219728, 2497194, 2853936, 3329592, 4994388, 6659184, 9988776, 19977552]

約数ペア:

[(1, 19977552), (2, 9988776), (3, 6659184), (4, 4994388), (6, 3329592), (7, 2853936), (8, 2497194), (9, 2219728), (12, 1664796), (14, 1426968), (16, 1248597), (18, 1109864), (21, 951312), (24, 832398), (28, 713484), (36, 554932), (42, 475656), (48, 416199), (56, 356742), (63, 317104), (72, 277466), (84, 237828), (112, 178371), (126, 158552), (144, 138733), (168, 118914), (252, 79276), (336, 59457), (504, 39638), (1008, 19819)]