21248766

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15331}}^1$

素因数の和:15357

約数の個数: 48

約数和(自身を含む): 57403008

約数和(自身を除く): 36154242

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386, 15331, 30662, 45993, 91986, 107317, 137979, 168641, 214634, 275958, 321951, 337282, 505923, 643902, 965853, 1011846, 1180487, 1517769, 1931706, 2360974, 3035538, 3541461, 7082922, 10624383, 21248766]

約数ペア:

[(1, 21248766), (2, 10624383), (3, 7082922), (6, 3541461), (7, 3035538), (9, 2360974), (11, 1931706), (14, 1517769), (18, 1180487), (21, 1011846), (22, 965853), (33, 643902), (42, 505923), (63, 337282), (66, 321951), (77, 275958), (99, 214634), (126, 168641), (154, 137979), (198, 107317), (231, 91986), (462, 45993), (693, 30662), (1386, 15331)]