15668918993

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1879}}^1$

素因数の和:1991

約数の個数: 72

約数和(自身を含む): 21179102400

約数和(自身を除く): 5510183407

約数列:

[1, 7, 13, 19, 49, 53, 91, 133, 169, 247, 371, 637, 689, 931, 1007, 1183, 1729, 1879, 2597, 3211, 4823, 7049, 8281, 8957, 12103, 13091, 13153, 22477, 24427, 33761, 35701, 49343, 62699, 91637, 92071, 99587, 157339, 170183, 170989, 249907, 317551, 438893, 464113, 641459, 697109, 1191281, 1196923, 1294631, 1749349, 1892153, 2222857, 3248791, 4879763, 6033469, 8338967, 9062417, 13245071, 15559999, 16830203, 22741537, 24597989, 42234283, 63436919, 92715497, 117811421, 172185923, 295639981, 319773857, 824679947, 1205301461, 2238416999, 15668918993]

約数ペア:

[(1, 15668918993), (7, 2238416999), (13, 1205301461), (19, 824679947), (49, 319773857), (53, 295639981), (91, 172185923), (133, 117811421), (169, 92715497), (247, 63436919), (371, 42234283), (637, 24597989), (689, 22741537), (931, 16830203), (1007, 15559999), (1183, 13245071), (1729, 9062417), (1879, 8338967), (2597, 6033469), (3211, 4879763), (4823, 3248791), (7049, 2222857), (8281, 1892153), (8957, 1749349), (12103, 1294631), (13091, 1196923), (13153, 1191281), (22477, 697109), (24427, 641459), (33761, 464113), (35701, 438893), (49343, 317551), (62699, 249907), (91637, 170989), (92071, 170183), (99587, 157339)]