20739184

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4013}}^1$

素因数の和:4057

約数の個数: 40

約数和(自身を含む): 44796240

約数和(自身を除く): 24057056

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 4013, 5168, 8026, 16052, 32104, 64208, 68221, 76247, 136442, 152494, 272884, 304988, 545768, 609976, 1091536, 1219952, 1296199, 2592398, 5184796, 10369592, 20739184]

約数ペア:

[(1, 20739184), (2, 10369592), (4, 5184796), (8, 2592398), (16, 1296199), (17, 1219952), (19, 1091536), (34, 609976), (38, 545768), (68, 304988), (76, 272884), (136, 152494), (152, 136442), (272, 76247), (304, 68221), (323, 64208), (646, 32104), (1292, 16052), (2584, 8026), (4013, 5168)]