211370421

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1\times {\mathrm{307}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 305141760

約数和(自身を除く): 93771339

約数列:

[1, 3, 19, 47, 57, 141, 257, 307, 771, 893, 921, 2679, 4883, 5833, 12079, 14429, 14649, 17499, 36237, 43287, 78899, 229501, 236697, 274151, 688503, 822453, 1499081, 3708253, 4497243, 11124759, 70456807, 211370421]

約数ペア:

[(1, 211370421), (3, 70456807), (19, 11124759), (47, 4497243), (57, 3708253), (141, 1499081), (257, 822453), (307, 688503), (771, 274151), (893, 236697), (921, 229501), (2679, 78899), (4883, 43287), (5833, 36237), (12079, 17499), (14429, 14649)]