21195568

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{283}}^1$

素因数の和:473

約数の個数: 40

約数和(自身を含む): 42822656

約数和(自身を除く): 21627088

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 151, 248, 283, 302, 496, 566, 604, 1132, 1208, 2264, 2416, 4528, 4681, 8773, 9362, 17546, 18724, 35092, 37448, 42733, 70184, 74896, 85466, 140368, 170932, 341864, 683728, 1324723, 2649446, 5298892, 10597784, 21195568]

約数ペア:

[(1, 21195568), (2, 10597784), (4, 5298892), (8, 2649446), (16, 1324723), (31, 683728), (62, 341864), (124, 170932), (151, 140368), (248, 85466), (283, 74896), (302, 70184), (496, 42733), (566, 37448), (604, 35092), (1132, 18724), (1208, 17546), (2264, 9362), (2416, 8773), (4528, 4681)]