21581270

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1619}}^1$

素因数の和:1700

約数の個数: 32

約数和(自身を含む): 41057280

約数和(自身を除く): 19476010

約数列:

[1, 2, 5, 10, 31, 43, 62, 86, 155, 215, 310, 430, 1333, 1619, 2666, 3238, 6665, 8095, 13330, 16190, 50189, 69617, 100378, 139234, 250945, 348085, 501890, 696170, 2158127, 4316254, 10790635, 21581270]

約数ペア:

[(1, 21581270), (2, 10790635), (5, 4316254), (10, 2158127), (31, 696170), (43, 501890), (62, 348085), (86, 250945), (155, 139234), (215, 100378), (310, 69617), (430, 50189), (1333, 16190), (1619, 13330), (2666, 8095), (3238, 6665)]