20333648

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{317}}^1$

素因数の和:555

約数の個数: 40

約数和(自身を含む): 41797920

約数和(自身を除く): 21464272

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 211, 304, 317, 422, 634, 844, 1268, 1688, 2536, 3376, 4009, 5072, 6023, 8018, 12046, 16036, 24092, 32072, 48184, 64144, 66887, 96368, 133774, 267548, 535096, 1070192, 1270853, 2541706, 5083412, 10166824, 20333648]

約数ペア:

[(1, 20333648), (2, 10166824), (4, 5083412), (8, 2541706), (16, 1270853), (19, 1070192), (38, 535096), (76, 267548), (152, 133774), (211, 96368), (304, 66887), (317, 64144), (422, 48184), (634, 32072), (844, 24092), (1268, 16036), (1688, 12046), (2536, 8018), (3376, 6023), (4009, 5072)]