19513912

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1061}}^1$

素因数の和:1108

約数の個数: 48

約数和(自身を含む): 42373800

約数和(自身を除く): 22859888

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 121, 152, 209, 242, 418, 484, 836, 968, 1061, 1672, 2122, 2299, 4244, 4598, 8488, 9196, 11671, 18392, 20159, 23342, 40318, 46684, 80636, 93368, 128381, 161272, 221749, 256762, 443498, 513524, 886996, 1027048, 1773992, 2439239, 4878478, 9756956, 19513912]

約数ペア:

[(1, 19513912), (2, 9756956), (4, 4878478), (8, 2439239), (11, 1773992), (19, 1027048), (22, 886996), (38, 513524), (44, 443498), (76, 256762), (88, 221749), (121, 161272), (152, 128381), (209, 93368), (242, 80636), (418, 46684), (484, 40318), (836, 23342), (968, 20159), (1061, 18392), (1672, 11671), (2122, 9196), (2299, 8488), (4244, 4598)]