21177616

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{431}}^1$

素因数の和:559

約数の個数: 40

約数和(自身を含む): 42747264

約数和(自身を除く): 21569648

約数列:

[1, 2, 4, 8, 16, 37, 74, 83, 148, 166, 296, 332, 431, 592, 664, 862, 1328, 1724, 3071, 3448, 6142, 6896, 12284, 15947, 24568, 31894, 35773, 49136, 63788, 71546, 127576, 143092, 255152, 286184, 572368, 1323601, 2647202, 5294404, 10588808, 21177616]

約数ペア:

[(1, 21177616), (2, 10588808), (4, 5294404), (8, 2647202), (16, 1323601), (37, 572368), (74, 286184), (83, 255152), (148, 143092), (166, 127576), (296, 71546), (332, 63788), (431, 49136), (592, 35773), (664, 31894), (862, 24568), (1328, 15947), (1724, 12284), (3071, 6896), (3448, 6142)]