19688504

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{977}}^1$

素因数の和:1223

約数の個数: 32

約数和(自身を含む): 40489200

約数和(自身を除く): 20800696

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 229, 458, 916, 977, 1832, 1954, 2519, 3908, 5038, 7816, 10076, 10747, 20152, 21494, 42988, 85976, 223733, 447466, 894932, 1789864, 2461063, 4922126, 9844252, 19688504]

約数ペア:

[(1, 19688504), (2, 9844252), (4, 4922126), (8, 2461063), (11, 1789864), (22, 894932), (44, 447466), (88, 223733), (229, 85976), (458, 42988), (916, 21494), (977, 20152), (1832, 10747), (1954, 10076), (2519, 7816), (3908, 5038)]