217609236

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{947}}^1$

素因数の和:1461

約数の個数: 72

約数和(自身を含む): 594213984

約数和(自身を除く): 376604748

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 491, 947, 982, 1473, 1894, 1964, 2841, 2946, 3788, 4419, 5682, 5892, 6383, 8523, 8838, 11364, 12311, 12766, 17046, 17676, 19149, 24622, 25532, 34092, 36933, 38298, 49244, 57447, 73866, 76596, 110799, 114894, 147732, 221598, 229788, 443196, 464977, 929954, 1394931, 1859908, 2789862, 4184793, 5579724, 6044701, 8369586, 12089402, 16739172, 18134103, 24178804, 36268206, 54402309, 72536412, 108804618, 217609236]

約数ペア:

[(1, 217609236), (2, 108804618), (3, 72536412), (4, 54402309), (6, 36268206), (9, 24178804), (12, 18134103), (13, 16739172), (18, 12089402), (26, 8369586), (36, 6044701), (39, 5579724), (52, 4184793), (78, 2789862), (117, 1859908), (156, 1394931), (234, 929954), (468, 464977), (491, 443196), (947, 229788), (982, 221598), (1473, 147732), (1894, 114894), (1964, 110799), (2841, 76596), (2946, 73866), (3788, 57447), (4419, 49244), (5682, 38298), (5892, 36933), (6383, 34092), (8523, 25532), (8838, 24622), (11364, 19149), (12311, 17676), (12766, 17046)]