20863976

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19609}}^1$

素因数の和:19641

約数の個数: 32

約数和(自身を含む): 47064000

約数和(自身を除く): 26200024

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 19609, 39218, 78436, 137263, 156872, 274526, 372571, 549052, 745142, 1098104, 1490284, 2607997, 2980568, 5215994, 10431988, 20863976]

約数ペア:

[(1, 20863976), (2, 10431988), (4, 5215994), (7, 2980568), (8, 2607997), (14, 1490284), (19, 1098104), (28, 745142), (38, 549052), (56, 372571), (76, 274526), (133, 156872), (152, 137263), (266, 78436), (532, 39218), (1064, 19609)]