19645568

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{4951}}^1$

素因数の和:4996

約数の個数: 32

約数和(自身を含む): 40408320

約数和(自身を除く): 20762752

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 4951, 9902, 19804, 39608, 79216, 153481, 158432, 306962, 316864, 613924, 633728, 1227848, 2455696, 4911392, 9822784, 19645568]

約数ペア:

[(1, 19645568), (2, 9822784), (4, 4911392), (8, 2455696), (16, 1227848), (31, 633728), (32, 613924), (62, 316864), (64, 306962), (124, 158432), (128, 153481), (248, 79216), (496, 39608), (992, 19804), (1984, 9902), (3968, 4951)]