21246693

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{541}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 32780160

約数和(自身を除く): 11533467

約数列:

[1, 3, 13, 19, 39, 53, 57, 159, 247, 541, 689, 741, 1007, 1623, 2067, 3021, 7033, 10279, 13091, 21099, 28673, 30837, 39273, 86019, 133627, 372749, 400881, 544787, 1118247, 1634361, 7082231, 21246693]

約数ペア:

[(1, 21246693), (3, 7082231), (13, 1634361), (19, 1118247), (39, 544787), (53, 400881), (57, 372749), (159, 133627), (247, 86019), (541, 39273), (689, 30837), (741, 28673), (1007, 21099), (1623, 13091), (2067, 10279), (3021, 7033)]