211287764

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{409}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 401708160

約数和(自身を除く): 190420396

約数列:

[1, 2, 4, 17, 34, 68, 71, 107, 142, 214, 284, 409, 428, 818, 1207, 1636, 1819, 2414, 3638, 4828, 6953, 7276, 7597, 13906, 15194, 27812, 29039, 30388, 43763, 58078, 87526, 116156, 129149, 175052, 258298, 493663, 516596, 743971, 987326, 1487942, 1974652, 2975884, 3107173, 6214346, 12428692, 52821941, 105643882, 211287764]

約数ペア:

[(1, 211287764), (2, 105643882), (4, 52821941), (17, 12428692), (34, 6214346), (68, 3107173), (71, 2975884), (107, 1974652), (142, 1487942), (214, 987326), (284, 743971), (409, 516596), (428, 493663), (818, 258298), (1207, 175052), (1636, 129149), (1819, 116156), (2414, 87526), (3638, 58078), (4828, 43763), (6953, 30388), (7276, 29039), (7597, 27812), (13906, 15194)]