213189945

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 377395200

約数和(自身を除く): 164205255

約数列:

[1, 3, 5, 15, 17, 31, 51, 85, 93, 149, 155, 181, 255, 447, 465, 527, 543, 745, 905, 1581, 2235, 2533, 2635, 2715, 3077, 4619, 5611, 7599, 7905, 9231, 12665, 13857, 15385, 16833, 23095, 26969, 28055, 37995, 46155, 69285, 78523, 80907, 84165, 95387, 134845, 235569, 286161, 392615, 404535, 458473, 476935, 836039, 1177845, 1375419, 1430805, 2292365, 2508117, 4180195, 6877095, 12540585, 14212663, 42637989, 71063315, 213189945]

約数ペア:

[(1, 213189945), (3, 71063315), (5, 42637989), (15, 14212663), (17, 12540585), (31, 6877095), (51, 4180195), (85, 2508117), (93, 2292365), (149, 1430805), (155, 1375419), (181, 1177845), (255, 836039), (447, 476935), (465, 458473), (527, 404535), (543, 392615), (745, 286161), (905, 235569), (1581, 134845), (2235, 95387), (2533, 84165), (2635, 80907), (2715, 78523), (3077, 69285), (4619, 46155), (5611, 37995), (7599, 28055), (7905, 26969), (9231, 23095), (12665, 16833), (13857, 15385)]