20813444

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{433}}^1$

素因数の和:695

約数の個数: 24

約数和(自身を含む): 37294488

約数和(自身を除く): 16481044

約数列:

[1, 2, 4, 61, 122, 197, 244, 394, 433, 788, 866, 1732, 12017, 24034, 26413, 48068, 52826, 85301, 105652, 170602, 341204, 5203361, 10406722, 20813444]

約数ペア:

[(1, 20813444), (2, 10406722), (4, 5203361), (61, 341204), (122, 170602), (197, 105652), (244, 85301), (394, 52826), (433, 48068), (788, 26413), (866, 24034), (1732, 12017)]