21323925

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4513}}^1$

素因数の和:4539

約数の個数: 48

約数和(自身を含む): 44778880

約数和(自身を除く): 23454955

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4513, 4725, 13539, 22565, 31591, 40617, 67695, 94773, 112825, 121851, 157955, 203085, 284319, 338475, 473865, 609255, 789775, 852957, 1015425, 1421595, 2369325, 3046275, 4264785, 7107975, 21323925]

約数ペア:

[(1, 21323925), (3, 7107975), (5, 4264785), (7, 3046275), (9, 2369325), (15, 1421595), (21, 1015425), (25, 852957), (27, 789775), (35, 609255), (45, 473865), (63, 338475), (75, 284319), (105, 203085), (135, 157955), (175, 121851), (189, 112825), (225, 94773), (315, 67695), (525, 40617), (675, 31591), (945, 22565), (1575, 13539), (4513, 4725)]