21919635

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{827}}^1$

素因数の和:888

約数の個数: 48

約数和(自身を含む): 41333760

約数和(自身を除く): 19414125

約数列:

[1, 3, 5, 9, 15, 19, 31, 45, 57, 93, 95, 155, 171, 279, 285, 465, 589, 827, 855, 1395, 1767, 2481, 2945, 4135, 5301, 7443, 8835, 12405, 15713, 25637, 26505, 37215, 47139, 76911, 78565, 128185, 141417, 230733, 235695, 384555, 487103, 707085, 1153665, 1461309, 2435515, 4383927, 7306545, 21919635]

約数ペア:

[(1, 21919635), (3, 7306545), (5, 4383927), (9, 2435515), (15, 1461309), (19, 1153665), (31, 707085), (45, 487103), (57, 384555), (93, 235695), (95, 230733), (155, 141417), (171, 128185), (279, 78565), (285, 76911), (465, 47139), (589, 37215), (827, 26505), (855, 25637), (1395, 15713), (1767, 12405), (2481, 8835), (2945, 7443), (4135, 5301)]