20874388

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{787}}^1$

素因数の和:1159

約数の個数: 24

約数和(自身を含む): 38612000

約数和(自身を除く): 17737612

約数列:

[1, 2, 4, 19, 38, 76, 349, 698, 787, 1396, 1574, 3148, 6631, 13262, 14953, 26524, 29906, 59812, 274663, 549326, 1098652, 5218597, 10437194, 20874388]

約数ペア:

[(1, 20874388), (2, 10437194), (4, 5218597), (19, 1098652), (38, 549326), (76, 274663), (349, 59812), (698, 29906), (787, 26524), (1396, 14953), (1574, 13262), (3148, 6631)]