21281330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16001}}^1$

素因数の和:16034

約数の個数: 32

約数和(自身を含む): 46085760

約数和(自身を除く): 24804430

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 16001, 32002, 80005, 112007, 160010, 224014, 304019, 560035, 608038, 1120070, 1520095, 2128133, 3040190, 4256266, 10640665, 21281330]

約数ペア:

[(1, 21281330), (2, 10640665), (5, 4256266), (7, 3040190), (10, 2128133), (14, 1520095), (19, 1120070), (35, 608038), (38, 560035), (70, 304019), (95, 224014), (133, 160010), (190, 112007), (266, 80005), (665, 32002), (1330, 16001)]