20863672

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{433}}^1$

素因数の和:775

約数の個数: 32

約数和(自身を含む): 41403600

約数和(自身を除く): 20539928

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 317, 433, 634, 866, 1268, 1732, 2536, 3464, 6023, 8227, 12046, 16454, 24092, 32908, 48184, 65816, 137261, 274522, 549044, 1098088, 2607959, 5215918, 10431836, 20863672]

約数ペア:

[(1, 20863672), (2, 10431836), (4, 5215918), (8, 2607959), (19, 1098088), (38, 549044), (76, 274522), (152, 137261), (317, 65816), (433, 48184), (634, 32908), (866, 24092), (1268, 16454), (1732, 12046), (2536, 8227), (3464, 6023)]