211279978

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2969}}^1$

素因数の和:3031

約数の個数: 64

約数和(自身を含む): 431101440

約数和(自身を除く): 219821462

約数列:

[1, 2, 7, 13, 14, 17, 23, 26, 34, 46, 91, 119, 161, 182, 221, 238, 299, 322, 391, 442, 598, 782, 1547, 2093, 2737, 2969, 3094, 4186, 5083, 5474, 5938, 10166, 20783, 35581, 38597, 41566, 50473, 68287, 71162, 77194, 100946, 136574, 270179, 353311, 478009, 540358, 656149, 706622, 887731, 956018, 1160879, 1312298, 1775462, 2321758, 4593043, 6214117, 8126153, 9186086, 12428234, 15091427, 16252306, 30182854, 105639989, 211279978]

約数ペア:

[(1, 211279978), (2, 105639989), (7, 30182854), (13, 16252306), (14, 15091427), (17, 12428234), (23, 9186086), (26, 8126153), (34, 6214117), (46, 4593043), (91, 2321758), (119, 1775462), (161, 1312298), (182, 1160879), (221, 956018), (238, 887731), (299, 706622), (322, 656149), (391, 540358), (442, 478009), (598, 353311), (782, 270179), (1547, 136574), (2093, 100946), (2737, 77194), (2969, 71162), (3094, 68287), (4186, 50473), (5083, 41566), (5474, 38597), (5938, 35581), (10166, 20783)]