21764025

素因数分解:

$3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1697}}^1$

素因数の和:1735

約数の個数: 48

約数和(自身を含む): 42110400

約数和(自身を除く): 20346375

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 95, 135, 171, 225, 285, 475, 513, 675, 855, 1425, 1697, 2565, 4275, 5091, 8485, 12825, 15273, 25455, 32243, 42425, 45819, 76365, 96729, 127275, 161215, 229095, 290187, 381825, 483645, 806075, 870561, 1145475, 1450935, 2418225, 4352805, 7254675, 21764025]

約数ペア:

[(1, 21764025), (3, 7254675), (5, 4352805), (9, 2418225), (15, 1450935), (19, 1145475), (25, 870561), (27, 806075), (45, 483645), (57, 381825), (75, 290187), (95, 229095), (135, 161215), (171, 127275), (225, 96729), (285, 76365), (475, 45819), (513, 42425), (675, 32243), (855, 25455), (1425, 15273), (1697, 12825), (2565, 8485), (4275, 5091)]