213537808

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{63857}}^1$

素因数の和:63895

約数の個数: 40

約数和(自身を含む): 475103520

約数和(自身を除く): 261565712

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 63857, 127714, 255428, 510856, 702427, 1021712, 1213283, 1404854, 2426566, 2809708, 4853132, 5619416, 9706264, 11238832, 13346113, 19412528, 26692226, 53384452, 106768904, 213537808]

約数ペア:

[(1, 213537808), (2, 106768904), (4, 53384452), (8, 26692226), (11, 19412528), (16, 13346113), (19, 11238832), (22, 9706264), (38, 5619416), (44, 4853132), (76, 2809708), (88, 2426566), (152, 1404854), (176, 1213283), (209, 1021712), (304, 702427), (418, 510856), (836, 255428), (1672, 127714), (3344, 63857)]