18943184

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1493}}^1$

素因数の和:1575

約数の個数: 40

約数和(自身を含む): 40200552

約数和(自身を除く): 21257368

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1493, 1586, 2986, 3172, 5972, 6344, 11944, 12688, 19409, 23888, 38818, 77636, 91073, 155272, 182146, 310544, 364292, 728584, 1183949, 1457168, 2367898, 4735796, 9471592, 18943184]

約数ペア:

[(1, 18943184), (2, 9471592), (4, 4735796), (8, 2367898), (13, 1457168), (16, 1183949), (26, 728584), (52, 364292), (61, 310544), (104, 182146), (122, 155272), (208, 91073), (244, 77636), (488, 38818), (793, 23888), (976, 19409), (1493, 12688), (1586, 11944), (2986, 6344), (3172, 5972)]