21997383

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 32563200

約数和(自身を除く): 10565817

約数列:

[1, 3, 19, 31, 57, 59, 93, 177, 211, 589, 633, 1121, 1767, 1829, 3363, 4009, 5487, 6541, 12027, 12449, 19623, 34751, 37347, 104253, 124279, 236531, 372837, 385919, 709593, 1157757, 7332461, 21997383]

約数ペア:

[(1, 21997383), (3, 7332461), (19, 1157757), (31, 709593), (57, 385919), (59, 372837), (93, 236531), (177, 124279), (211, 104253), (589, 37347), (633, 34751), (1121, 19623), (1767, 12449), (1829, 12027), (3363, 6541), (4009, 5487)]