21844395

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{881}}^1$

素因数の和:940

約数の個数: 48

約数和(自身を含む): 41277600

約数和(自身を除く): 19433205

約数列:

[1, 3, 5, 9, 15, 19, 29, 45, 57, 87, 95, 145, 171, 261, 285, 435, 551, 855, 881, 1305, 1653, 2643, 2755, 4405, 4959, 7929, 8265, 13215, 16739, 24795, 25549, 39645, 50217, 76647, 83695, 127745, 150651, 229941, 251085, 383235, 485431, 753255, 1149705, 1456293, 2427155, 4368879, 7281465, 21844395]

約数ペア:

[(1, 21844395), (3, 7281465), (5, 4368879), (9, 2427155), (15, 1456293), (19, 1149705), (29, 753255), (45, 485431), (57, 383235), (87, 251085), (95, 229941), (145, 150651), (171, 127745), (261, 83695), (285, 76647), (435, 50217), (551, 39645), (855, 25549), (881, 24795), (1305, 16739), (1653, 13215), (2643, 8265), (2755, 7929), (4405, 4959)]