21546664

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{659}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 41738400

約数和(自身を除く): 20191736

約数列:

[1, 2, 4, 8, 61, 67, 122, 134, 244, 268, 488, 536, 659, 1318, 2636, 4087, 5272, 8174, 16348, 32696, 40199, 44153, 80398, 88306, 160796, 176612, 321592, 353224, 2693333, 5386666, 10773332, 21546664]

約数ペア:

[(1, 21546664), (2, 10773332), (4, 5386666), (8, 2693333), (61, 353224), (67, 321592), (122, 176612), (134, 160796), (244, 88306), (268, 80398), (488, 44153), (536, 40199), (659, 32696), (1318, 16348), (2636, 8174), (4087, 5272)]