21216896

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5347}}^1$

素因数の和:5392

約数の個数: 32

約数和(自身を含む): 43639680

約数和(自身を除く): 22422784

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5347, 10694, 21388, 42776, 85552, 165757, 171104, 331514, 342208, 663028, 684416, 1326056, 2652112, 5304224, 10608448, 21216896]

約数ペア:

[(1, 21216896), (2, 10608448), (4, 5304224), (8, 2652112), (16, 1326056), (31, 684416), (32, 663028), (62, 342208), (64, 331514), (124, 171104), (128, 165757), (248, 85552), (496, 42776), (992, 21388), (1984, 10694), (3968, 5347)]